84223904 has 24 divisors (see below), whose sum is σ = 167684580. Its totient is φ = 41637376.

The previous prime is 84223883. The next prime is 84223921. The reversal of 84223904 is 40932248.

It can be written as a sum of positive squares in 2 ways, for example, as 73068304 + 11155600 = 8548^2 + 3340^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11939 + ... + 17634.

Almost surely, 2^84223904 is an apocalyptic number.

It is an amenable number.

84223904 is a deficient number, since it is larger than the sum of its proper divisors (83460676).

84223904 is a wasteful number, since it uses less digits than its factorization.

84223904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29672 (or 29664 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 84223904 is about 9177.3582255462. The cubic root of 84223904 is about 438.3406925117.

The spelling of 84223904 in words is "eighty-four million, two hundred twenty-three thousand, nine hundred four".