616955364 has 72 divisors (see below), whose sum is σ = 1662039288. Its totient is φ = 192291840.

The previous prime is 616955303. The next prime is 616955393. The reversal of 616955364 is 463559616.

It can be written as a sum of positive squares in 4 ways, for example, as 60372900 + 556582464 = 7770^2 + 23592^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92874 + ... + 99294.

It is an arithmetic number, because the mean of its divisors is an integer number (23083879).

Almost surely, 2^616955364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616955364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831019644).

616955364 is an abundant number, since it is smaller than the sum of its proper divisors (1045083924).

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

616955364 is a wasteful number, since it uses less digits than its factorization.

616955364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6605 (or 6600 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 616955364 is about 24838.5861916495. The cubic root of 616955364 is about 851.3038186522.

The spelling of 616955364 in words is "six hundred sixteen million, nine hundred fifty-five thousand, three hundred sixty-four".