65072904 has 64 divisors (see below), whose sum is σ = 179504640. Its totient is φ = 19530240.

The previous prime is 65072893. The next prime is 65072921. The reversal of 65072904 is 40927056.

65072904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 15 ways as a sum of consecutive naturals, for example, 10249 + ... + 15335.

It is an arithmetic number, because the mean of its divisors is an integer number (2804760).

Almost surely, 2^65072904 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 65072904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89752320).

65072904 is an abundant number, since it is smaller than the sum of its proper divisors (114431736).

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

65072904 is a wasteful number, since it uses less digits than its factorization.

65072904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150 (or 5146 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 65072904 is about 8066.7777953778. Note that the first 4 decimals coincide. The cubic root of 65072904 is about 402.2228412274. Note that the first 3 decimals are identical.

The spelling of 65072904 in words is "sixty-five million, seventy-two thousand, nine hundred four".