616911992 has 8 divisors (see below), whose sum is σ = 1156710000. Its totient is φ = 308455992.

The previous prime is 616911979. The next prime is 616912019. The reversal of 616911992 is 299119616.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38556992 + ... + 38557007.

It is an arithmetic number, because the mean of its divisors is an integer number (144588750).

Almost surely, 2^616911992 is an apocalyptic number.

It is an amenable number.

616911992 is a deficient number, since it is larger than the sum of its proper divisors (539798008).

616911992 is a wasteful number, since it uses less digits than its factorization.

616911992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77114005 (or 77114001 counting only the distinct ones).

The product of its digits is 52488, while the sum is 44.

The square root of 616911992 is about 24837.7130992368. The cubic root of 616911992 is about 851.2838692812.

The spelling of 616911992 in words is "six hundred sixteen million, nine hundred eleven thousand, nine hundred ninety-two".