70872432 has 40 divisors (see below), whose sum is σ = 192725760. Its totient is φ = 22380480.

The previous prime is 70872421. The next prime is 70872443. The reversal of 70872432 is 23427807.

It is an interprime number because it is at equal distance from previous prime (70872421) and next prime (70872443).

It is a junction number, because it is equal to n+sod(n) for n = 70872393 and 70872402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37944 + ... + 39767.

It is an arithmetic number, because the mean of its divisors is an integer number (4818144).

Almost surely, 2^70872432 is an apocalyptic number.

It is an amenable number.

70872432 is an abundant number, since it is smaller than the sum of its proper divisors (121853328).

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

70872432 is a wasteful number, since it uses less digits than its factorization.

70872432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77741 (or 77735 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 70872432 is about 8418.5766017778. The cubic root of 70872432 is about 413.8336282188.

The spelling of 70872432 in words is "seventy million, eight hundred seventy-two thousand, four hundred thirty-two".