616596817 has 24 divisors (see below), whose sum is σ = 671961600. Its totient is φ = 565533696.

The previous prime is 616596803. The next prime is 616596829. The reversal of 616596817 is 718695616.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-616596817 is a prime.

It is a Duffinian number.

Its product of digits (544320) is a multiple of the sum of its prime divisors (448).

It is not an unprimeable number, because it can be changed into a prime (616596847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2579784 + ... + 2580022.

It is an arithmetic number, because the mean of its divisors is an integer number (27998400).

Almost surely, 2^616596817 is an apocalyptic number.

It is an amenable number.

616596817 is a deficient number, since it is larger than the sum of its proper divisors (55364783).

616596817 is a wasteful number, since it uses less digits than its factorization.

616596817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 448 counting only the distinct ones).

The product of its digits is 544320, while the sum is 49.

The square root of 616596817 is about 24831.3676022888. The cubic root of 616596817 is about 851.1388733978.

The spelling of 616596817 in words is "six hundred sixteen million, five hundred ninety-six thousand, eight hundred seventeen".