632528397 has 24 divisors (see below), whose sum is σ = 938096640. Its totient is φ = 410500320.

The previous prime is 632528389. The next prime is 632528399. The reversal of 632528397 is 793825236.

632528397 is a `hidden beast` number, since 6 + 3 + 252 + 8 + 397 = 666.

It is not a de Polignac number, because 632528397 - 2³ = 632528389 is a prime.

It is a super-2 number, since 2×632528397² = 800184346022779218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632528399) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76879 + ... + 84707.

It is an arithmetic number, because the mean of its divisors is an integer number (39087360).

Almost surely, 2^632528397 is an apocalyptic number.

It is an amenable number.

632528397 is a deficient number, since it is larger than the sum of its proper divisors (305568243).

632528397 is a wasteful number, since it uses less digits than its factorization.

632528397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8073 (or 8070 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 632528397 is about 25150.1172363073. The cubic root of 632528397 is about 858.4071819914.

The spelling of 632528397 in words is "six hundred thirty-two million, five hundred twenty-eight thousand, three hundred ninety-seven".