616956 has 12 divisors (see below), whose sum is σ = 1439592. Its totient is φ = 205648.

The previous prime is 616951. The next prime is 616961. The reversal of 616956 is 659616.

It is an interprime number because it is at equal distance from previous prime (616951) and next prime (616961).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616951) 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, 25695 + ... + 25718.

It is an arithmetic number, because the mean of its divisors is an integer number (119966).

2⁶¹⁶⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

616956 is an abundant number, since it is smaller than the sum of its proper divisors (822636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616956 is a wasteful number, since it uses less digits than its factorization.

616956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51420 (or 51418 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 616956 is about 785.4654670958. The cubic root of 616956 is about 85.1304111180.

The spelling of 616956 in words is "six hundred sixteen thousand, nine hundred fifty-six".