728590833 has 6 divisors (see below), whose sum is σ = 1052408994. Its totient is φ = 485727216.

The previous prime is 728590831. The next prime is 728590921. The reversal of 728590833 is 338095827.

728590833 is a `hidden beast` number, since 7 + 28 + 590 + 8 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 546016689 + 182574144 = 23367^2 + 13512^2 .

It is not a de Polignac number, because 728590833 - 2¹ = 728590831 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (728590831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40477260 + ... + 40477277.

It is an arithmetic number, because the mean of its divisors is an integer number (175401499).

Almost surely, 2^728590833 is an apocalyptic number.

It is an amenable number.

728590833 is a deficient number, since it is larger than the sum of its proper divisors (323818161).

728590833 is a wasteful number, since it uses less digits than its factorization.

728590833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80954543 (or 80954540 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 728590833 is about 26992.4217698227. The cubic root of 728590833 is about 899.8315870061.

The spelling of 728590833 in words is "seven hundred twenty-eight million, five hundred ninety thousand, eight hundred thirty-three".