728654766 has 32 divisors (see below), whose sum is σ = 1737911808. Its totient is φ = 199135200.

The previous prime is 728654749. The next prime is 728654809. The reversal of 728654766 is 667456827.

It is a congruent number.

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, 376185 + ... + 378116.

It is an arithmetic number, because the mean of its divisors is an integer number (54309744).

Almost surely, 2^728654766 is an apocalyptic number.

728654766 is an abundant number, since it is smaller than the sum of its proper divisors (1009257042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

728654766 is a wasteful number, since it uses less digits than its factorization.

728654766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754336.

The product of its digits is 3386880, while the sum is 51.

The square root of 728654766 is about 26993.6060206857. The cubic root of 728654766 is about 899.8579059621.

The spelling of 728654766 in words is "seven hundred twenty-eight million, six hundred fifty-four thousand, seven hundred sixty-six".