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616397 = 1673691
BaseRepresentation
bin10010110011111001101
31011022112112
42112133031
5124211042
621113405
75145035
oct2263715
91138475
10616397
11391121
12258865
13187742
141208c5
15c2982
hex967cd

616397 has 4 divisors (see below), whose sum is σ = 620256. Its totient is φ = 612540.

The previous prime is 616393. The next prime is 616409. The reversal of 616397 is 793616.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 616397 - 22 = 616393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1679 + ... + 2012.

It is an arithmetic number, because the mean of its divisors is an integer number (155064).

2616397 is an apocalyptic number.

It is an amenable number.

616397 is a deficient number, since it is larger than the sum of its proper divisors (3859).

616397 is a wasteful number, since it uses less digits than its factorization.

616397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858.

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

The square root of 616397 is about 785.1095464965. The cubic root of 616397 is about 85.1046922231.

The spelling of 616397 in words is "six hundred sixteen thousand, three hundred ninety-seven".

Divisors: 1 167 3691 616397