747138772 has 12 divisors (see below), whose sum is σ = 1308135136. Its totient is φ = 373385880.

The previous prime is 747138757. The next prime is 747138793. The reversal of 747138772 is 277831747.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 36504 + ... + 53167.

Almost surely, 2^747138772 is an apocalyptic number.

It is an amenable number.

747138772 is a deficient number, since it is larger than the sum of its proper divisors (560996364).

747138772 is a wasteful number, since it uses less digits than its factorization.

747138772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91758 (or 91756 counting only the distinct ones).

The product of its digits is 460992, while the sum is 46.

The square root of 747138772 is about 27333.8393205199. The cubic root of 747138772 is about 907.4034470912.

The spelling of 747138772 in words is "seven hundred forty-seven million, one hundred thirty-eight thousand, seven hundred seventy-two".