70873812 has 48 divisors (see below), whose sum is σ = 189683200. Its totient is φ = 22861440.

The previous prime is 70873771. The next prime is 70873841. The reversal of 70873812 is 21837807.

It is a super-2 number, since 2×70873812² = 10046194454822688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7237 + ... + 13932.

Almost surely, 2^70873812 is an apocalyptic number.

It is an amenable number.

70873812 is an abundant number, since it is smaller than the sum of its proper divisors (118809388).

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

70873812 is a wasteful number, since it uses less digits than its factorization.

70873812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21213 (or 21205 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 70873812 is about 8418.6585629778. The cubic root of 70873812 is about 413.8363142030.

The spelling of 70873812 in words is "seventy million, eight hundred seventy-three thousand, eight hundred twelve".