727890764 has 12 divisors (see below), whose sum is σ = 1297843344. Its totient is φ = 357078384.

The previous prime is 727890733. The next prime is 727890781. The reversal of 727890764 is 467098727.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1716512 + ... + 1716935.

It is an arithmetic number, because the mean of its divisors is an integer number (108153612).

Almost surely, 2^727890764 is an apocalyptic number.

It is an amenable number.

727890764 is a deficient number, since it is larger than the sum of its proper divisors (569952580).

727890764 is a wasteful number, since it uses less digits than its factorization.

727890764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433504 (or 3433502 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 50.

The square root of 727890764 is about 26979.4507727641. The cubic root of 727890764 is about 899.5432925616.

The spelling of 727890764 in words is "seven hundred twenty-seven million, eight hundred ninety thousand, seven hundred sixty-four".