616957 has 4 divisors (see below), whose sum is σ = 673056. Its totient is φ = 560860.

The previous prime is 616951. The next prime is 616961. The reversal of 616957 is 759616.

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 616957 - 2⁷ = 616829 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 (616951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28033 + ... + 28054.

It is an arithmetic number, because the mean of its divisors is an integer number (168264).

2⁶¹⁶⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

616957 is a deficient number, since it is larger than the sum of its proper divisors (56099).

616957 is a wasteful number, since it uses less digits than its factorization.

616957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56098.

The product of its digits is 11340, while the sum is 34.

The square root of 616957 is about 785.4661036607. The cubic root of 616957 is about 85.1304571128.

It can be divided in two parts, 6169 and 57, that added together give a palindrome (6226).

The spelling of 616957 in words is "six hundred sixteen thousand, nine hundred fifty-seven".