747312345 has 32 divisors (see below), whose sum is σ = 1430755200. Its totient is φ = 367906752.

The previous prime is 747312341. The next prime is 747312359. The reversal of 747312345 is 543213747.

It is not a de Polignac number, because 747312345 - 2² = 747312341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (747312341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211155 + ... + 214664.

It is an arithmetic number, because the mean of its divisors is an integer number (44711100).

Almost surely, 2^747312345 is an apocalyptic number.

It is an amenable number.

747312345 is a deficient number, since it is larger than the sum of its proper divisors (683442855).

747312345 is a wasteful number, since it uses less digits than its factorization.

747312345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425846 (or 425840 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 747312345 is about 27337.0141932143. The cubic root of 747312345 is about 907.4737100505.

The spelling of 747312345 in words is "seven hundred forty-seven million, three hundred twelve thousand, three hundred forty-five".