727822164 has 24 divisors (see below), whose sum is σ = 1756812960. Its totient is φ = 234241504.

The previous prime is 727822163. The next prime is 727822187. The reversal of 727822164 is 461228727.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (727822163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1045374 + ... + 1046069.

It is an arithmetic number, because the mean of its divisors is an integer number (73200540).

Almost surely, 2^727822164 is an apocalyptic number.

It is an amenable number.

727822164 is an abundant number, since it is smaller than the sum of its proper divisors (1028990796).

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

727822164 is a wasteful number, since it uses less digits than its factorization.

727822164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091479 (or 2091477 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The square root of 727822164 is about 26978.1794048449. The cubic root of 727822164 is about 899.5150325481.

The spelling of 727822164 in words is "seven hundred twenty-seven million, eight hundred twenty-two thousand, one hundred sixty-four".