728745795 has 64 divisors (see below), whose sum is σ = 1322956800. Its totient is φ = 380540160.

The previous prime is 728745733. The next prime is 728745841. The reversal of 728745795 is 597547827.

It is a happy number.

It is not a de Polignac number, because 728745795 - 2⁸ = 728745539 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1573734 + ... + 1574196.

It is an arithmetic number, because the mean of its divisors is an integer number (20671200).

Almost surely, 2^728745795 is an apocalyptic number.

728745795 is a deficient number, since it is larger than the sum of its proper divisors (594211005).

728745795 is a wasteful number, since it uses less digits than its factorization.

728745795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 691 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 54.

The square root of 728745795 is about 26995.2920895478. The cubic root of 728745795 is about 899.8953767271.

The spelling of 728745795 in words is "seven hundred twenty-eight million, seven hundred forty-five thousand, seven hundred ninety-five".