597639428 has 6 divisors (see below), whose sum is σ = 1045869006. Its totient is φ = 298819712.

The previous prime is 597639401. The next prime is 597639431. The reversal of 597639428 is 824936795.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 462336004 + 135303424 = 21502^2 + 11632^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 597639428.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74704925 + ... + 74704932.

It is an arithmetic number, because the mean of its divisors is an integer number (174311501).

Almost surely, 2^597639428 is an apocalyptic number.

It is an amenable number.

597639428 is a deficient number, since it is larger than the sum of its proper divisors (448229578).

597639428 is a wasteful number, since it uses less digits than its factorization.

597639428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149409861 (or 149409859 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 53.

The square root of 597639428 is about 24446.6649668211. The cubic root of 597639428 is about 842.3251095857.

The spelling of 597639428 in words is "five hundred ninety-seven million, six hundred thirty-nine thousand, four hundred twenty-eight".