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997941 = 3747521
BaseRepresentation
bin11110011101000110101
31212200220210
43303220311
5223413231
633220033
711324310
oct3635065
91780823
10997941
1162184a
12401619
1328c2c9
141bd977
1514aa46
hexf3a35

997941 has 8 divisors (see below), whose sum is σ = 1520704. Its totient is φ = 570240.

The previous prime is 997933. The next prime is 997949. The reversal of 997941 is 149799.

It is an interprime number because it is at equal distance from previous prime (997933) and next prime (997949).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 997941 - 23 = 997933 is a prime.

It is a Duffinian number.

It is a Curzon number.

997941 is a lucky number.

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 997941.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 997941.

It is not an unprimeable number, because it can be changed into a prime (997949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23740 + ... + 23781.

It is an arithmetic number, because the mean of its divisors is an integer number (190088).

2997941 is an apocalyptic number.

It is an amenable number.

997941 is a deficient number, since it is larger than the sum of its proper divisors (522763).

997941 is a wasteful number, since it uses less digits than its factorization.

997941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47531.

The product of its digits is 20412, while the sum is 39.

The square root of 997941 is about 998.9699695186. The cubic root of 997941 is about 99.9313195074.

The spelling of 997941 in words is "nine hundred ninety-seven thousand, nine hundred forty-one".

Divisors: 1 3 7 21 47521 142563 332647 997941