616974980 has 12 divisors (see below), whose sum is σ = 1295647500. Its totient is φ = 246789984.

The previous prime is 616974937. The next prime is 616974983. The reversal of 616974980 is 89479616.

It can be written as a sum of positive squares in 2 ways, for example, as 69789316 + 547185664 = 8354^2 + 23392^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (616974983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15424355 + ... + 15424394.

It is an arithmetic number, because the mean of its divisors is an integer number (107970625).

Almost surely, 2^616974980 is an apocalyptic number.

It is an amenable number.

616974980 is an abundant number, since it is smaller than the sum of its proper divisors (678672520).

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

616974980 is a wasteful number, since it uses less digits than its factorization.

616974980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30848758 (or 30848756 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 616974980 is about 24838.9810580064. The cubic root of 616974980 is about 851.3128409142.

The spelling of 616974980 in words is "six hundred sixteen million, nine hundred seventy-four thousand, nine hundred eighty".