747128356 has 48 divisors (see below), whose sum is σ = 1451955456. Its totient is φ = 334220544.

The previous prime is 747128339. The next prime is 747128407. The reversal of 747128356 is 653821747.

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, 260080 + ... + 262936.

It is an arithmetic number, because the mean of its divisors is an integer number (30249072).

Almost surely, 2^747128356 is an apocalyptic number.

It is an amenable number.

747128356 is a deficient number, since it is larger than the sum of its proper divisors (704827100).

747128356 is a wasteful number, since it uses less digits than its factorization.

747128356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028 (or 3026 counting only the distinct ones).

The product of its digits is 282240, while the sum is 43.

The square root of 747128356 is about 27333.6487867976. The cubic root of 747128356 is about 907.3992303118.

The spelling of 747128356 in words is "seven hundred forty-seven million, one hundred twenty-eight thousand, three hundred fifty-six".