616791904 has 48 divisors (see below), whose sum is σ = 1244472768. Its totient is φ = 300782592.

The previous prime is 616791859. The next prime is 616791919. The reversal of 616791904 is 409197616.

It is a happy number.

616791904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 596572 + ... + 597604.

It is an arithmetic number, because the mean of its divisors is an integer number (25926516).

Almost surely, 2^616791904 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 616791904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622236384).

616791904 is an abundant number, since it is smaller than the sum of its proper divisors (627680864).

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

616791904 is a wasteful number, since it uses less digits than its factorization.

616791904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487 (or 1479 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 616791904 is about 24835.2955287430. The cubic root of 616791904 is about 851.2286287646.

The spelling of 616791904 in words is "six hundred sixteen million, seven hundred ninety-one thousand, nine hundred four".