632697172 has 6 divisors (see below), whose sum is σ = 1107220058. Its totient is φ = 316348584.

The previous prime is 632697113. The next prime is 632697193. The reversal of 632697172 is 271796236.

It can be written as a sum of positive squares in only one way, i.e., 489559876 + 143137296 = 22126^2 + 11964^2 .

It is a super-2 number, since 2×632697172² = 800611422913595168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79087143 + ... + 79087150.

Almost surely, 2^632697172 is an apocalyptic number.

It is an amenable number.

632697172 is a deficient number, since it is larger than the sum of its proper divisors (474522886).

632697172 is a wasteful number, since it uses less digits than its factorization.

632697172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158174297 (or 158174295 counting only the distinct ones).

The product of its digits is 190512, while the sum is 43.

The square root of 632697172 is about 25153.4723646657. The cubic root of 632697172 is about 858.4835236434.

The spelling of 632697172 in words is "six hundred thirty-two million, six hundred ninety-seven thousand, one hundred seventy-two".