616590976 has 64 divisors (see below), whose sum is σ = 1265793480. Its totient is φ = 299040768.

The previous prime is 616590943. The next prime is 616590991. The reversal of 616590976 is 679095616.

It can be written as a sum of positive squares in 4 ways, for example, as 430977600 + 185613376 = 20760^2 + 13624^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657580 + ... + 658516.

Almost surely, 2^616590976 is an apocalyptic number.

616590976 is the 12416-th decagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616590976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632896740).

616590976 is an abundant number, since it is smaller than the sum of its proper divisors (649202504).

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

616590976 is an equidigital number, since it uses as much as digits as its factorization.

616590976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 49.

The square root of 616590976 is about 24831.2499886735. The cubic root of 616590976 is about 851.1361857864.

The spelling of 616590976 in words is "six hundred sixteen million, five hundred ninety thousand, nine hundred seventy-six".