727161996 has 48 divisors (see below), whose sum is σ = 1948383360. Its totient is φ = 208753920.

The previous prime is 727161989. The next prime is 727162001. The reversal of 727161996 is 699161727.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142461 + ... + 147476.

It is an arithmetic number, because the mean of its divisors is an integer number (40591320).

Almost surely, 2^727161996 is an apocalyptic number.

727161996 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

727161996 is an abundant number, since it is smaller than the sum of its proper divisors (1221221364).

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

727161996 is a wasteful number, since it uses less digits than its factorization.

727161996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289974 (or 289972 counting only the distinct ones).

The product of its digits is 285768, while the sum is 48.

The square root of 727161996 is about 26965.9414076349. The cubic root of 727161996 is about 899.2429831822.

The spelling of 727161996 in words is "seven hundred twenty-seven million, one hundred sixty-one thousand, nine hundred ninety-six".