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997430 = 25714249
BaseRepresentation
bin11110011100000110110
31212200012212
43303200312
5223404210
633213422
711322650
oct3634066
91780185
10997430
11621425
12401272
1328bcc5
141bd6d0
1514a805
hexf3836

997430 has 16 divisors (see below), whose sum is σ = 2052000. Its totient is φ = 341952.

The previous prime is 997427. The next prime is 997433. The reversal of 997430 is 34799.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (997427) and next prime (997433).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7055 + ... + 7194.

It is an arithmetic number, because the mean of its divisors is an integer number (128250).

2997430 is an apocalyptic number.

997430 is an abundant number, since it is smaller than the sum of its proper divisors (1054570).

It is a weird number, because it is abundant, but not a pseudoperfect number.

997430 is a wasteful number, since it uses less digits than its factorization.

997430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14263.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 997430 is about 998.7141733249. The cubic root of 997430 is about 99.9142598406.

The spelling of 997430 in words is "nine hundred ninety-seven thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 14249 28498 71245 99743 142490 199486 498715 997430