728496628 has 24 divisors (see below), whose sum is σ = 1295481600. Its totient is φ = 358372608.

The previous prime is 728496581. The next prime is 728496647. The reversal of 728496628 is 826694827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384708 + ... + 386596.

It is an arithmetic number, because the mean of its divisors is an integer number (53978400).

Almost surely, 2^728496628 is an apocalyptic number.

It is an amenable number.

728496628 is a deficient number, since it is larger than the sum of its proper divisors (566984972).

728496628 is a wasteful number, since it uses less digits than its factorization.

728496628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399 (or 3397 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The square root of 728496628 is about 26990.6766865894. The cubic root of 728496628 is about 899.7928033320.

The spelling of 728496628 in words is "seven hundred twenty-eight million, four hundred ninety-six thousand, six hundred twenty-eight".