747890715 has 96 divisors (see below), whose sum is σ = 1466660160. Its totient is φ = 322882560.

The previous prime is 747890713. The next prime is 747890719. The reversal of 747890715 is 517098747.

747890715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 747890715 - 2¹ = 747890713 is a prime.

It is a super-2 number, since 2×747890715² = 1118681043166422450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (747890713) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 683709 + ... + 684801.

It is an arithmetic number, because the mean of its divisors is an integer number (15277710).

Almost surely, 2^747890715 is an apocalyptic number.

747890715 is a deficient number, since it is larger than the sum of its proper divisors (718769445).

747890715 is a wasteful number, since it uses less digits than its factorization.

747890715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 48.

The square root of 747890715 is about 27347.5906617018. The cubic root of 747890715 is about 907.7077577595.

The spelling of 747890715 in words is "seven hundred forty-seven million, eight hundred ninety thousand, seven hundred fifteen".