707871132 has 18 divisors (see below), whose sum is σ = 1789341008. Its totient is φ = 235957032.

The previous prime is 707871119. The next prime is 707871139. The reversal of 707871132 is 231178707.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×707871132² = 1002163079037922848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 19663087 = 707871132 / (7 + 0 + 7 + 8 + 7 + 1 + 1 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (707871139) 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, 9831508 + ... + 9831579.

Almost surely, 2^707871132 is an apocalyptic number.

It is an amenable number.

707871132 is an abundant number, since it is smaller than the sum of its proper divisors (1081469876).

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

707871132 is a wasteful number, since it uses less digits than its factorization.

707871132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19663097 (or 19663092 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 36.

The square root of 707871132 is about 26605.8477030896. The cubic root of 707871132 is about 891.2196097714.

It can be divided in two parts, 7078 and 71132, that added together give a triangular number (78210 = T₃₉₅).

The spelling of 707871132 in words is "seven hundred seven million, eight hundred seventy-one thousand, one hundred thirty-two".