70983918 has 16 divisors (see below), whose sum is σ = 157742160. Its totient is φ = 23661288.

The previous prime is 70983917. The next prime is 70983923. The reversal of 70983918 is 81938907.

It is a super-2 number, since 2×70983918² = 10077433229261448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70983917) 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 7 ways as a sum of consecutive naturals, for example, 657205 + ... + 657312.

It is an arithmetic number, because the mean of its divisors is an integer number (9858885).

Almost surely, 2^70983918 is an apocalyptic number.

70983918 is an abundant number, since it is smaller than the sum of its proper divisors (86758242).

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

70983918 is a wasteful number, since it uses less digits than its factorization.

70983918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314528 (or 1314522 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 70983918 is about 8425.1954280005. The cubic root of 70983918 is about 414.0505084354.

The spelling of 70983918 in words is "seventy million, nine hundred eighty-three thousand, nine hundred eighteen".