616573684 has 6 divisors (see below), whose sum is σ = 1079003954. Its totient is φ = 308286840.

The previous prime is 616573681. The next prime is 616573709. The reversal of 616573684 is 486375616.

It can be written as a sum of positive squares in only one way, i.e., 613949284 + 2624400 = 24778^2 + 1620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616573681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77071707 + ... + 77071714.

Almost surely, 2^616573684 is an apocalyptic number.

It is an amenable number.

616573684 is a deficient number, since it is larger than the sum of its proper divisors (462430270).

616573684 is a wasteful number, since it uses less digits than its factorization.

616573684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154143425 (or 154143423 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The square root of 616573684 is about 24830.9017959477. The cubic root of 616573684 is about 851.1282291425.

It can be divided in two parts, 61657 and 3684, that added together give a triangular number (65341 = T₃₆₁).

The spelling of 616573684 in words is "six hundred sixteen million, five hundred seventy-three thousand, six hundred eighty-four".