70872732 has 60 divisors (see below), whose sum is σ = 211750000. Its totient is φ = 20248704.

The previous prime is 70872719. The next prime is 70872749. The reversal of 70872732 is 23727807.

It is a super-2 number, since 2×70872732² = 10045888282287648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13357 + ... + 17892.

Almost surely, 2^70872732 is an apocalyptic number.

It is an amenable number.

70872732 is an abundant number, since it is smaller than the sum of its proper divisors (140877268).

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

70872732 is a wasteful number, since it uses less digits than its factorization.

70872732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31272 (or 31261 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 70872732 is about 8418.5944194978. The cubic root of 70872732 is about 413.8342121314.

The spelling of 70872732 in words is "seventy million, eight hundred seventy-two thousand, seven hundred thirty-two".