70883172 has 18 divisors (see below), whose sum is σ = 179176998. Its totient is φ = 23627712.

The previous prime is 70883107. The next prime is 70883173. The reversal of 70883172 is 27138807.

It can be written as a sum of positive squares in only one way, i.e., 45239076 + 25644096 = 6726^2 + 5064^2 .

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

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: 1968977 = 70883172 / (7 + 0 + 8 + 8 + 3 + 1 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (70883173) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 984453 + ... + 984524.

Almost surely, 2^70883172 is an apocalyptic number.

It is an amenable number.

70883172 is an abundant number, since it is smaller than the sum of its proper divisors (108293826).

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

70883172 is a wasteful number, since it uses less digits than its factorization.

70883172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968987 (or 1968982 counting only the distinct ones).

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

The square root of 70883172 is about 8419.2144526672. The cubic root of 70883172 is about 413.8545312627.

The spelling of 70883172 in words is "seventy million, eight hundred eighty-three thousand, one hundred seventy-two".