84423712 has 24 divisors (see below), whose sum is σ = 166710096. Its totient is φ = 42084672.

The previous prime is 84423679. The next prime is 84423721. The reversal of 84423712 is 21732448.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7303 + ... + 14905.

It is an arithmetic number, because the mean of its divisors is an integer number (6946254).

Almost surely, 2^84423712 is an apocalyptic number.

It is an amenable number.

84423712 is a deficient number, since it is larger than the sum of its proper divisors (82286384).

84423712 is a wasteful number, since it uses less digits than its factorization.

84423712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7960 (or 7952 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 84423712 is about 9188.2376982749. The cubic root of 84423712 is about 438.6870502729.

The spelling of 84423712 in words is "eighty-four million, four hundred twenty-three thousand, seven hundred twelve".