84223724 has 12 divisors (see below), whose sum is σ = 158729424. Its totient is φ = 38872464.

The previous prime is 84223709. The next prime is 84223747. The reversal of 84223724 is 42732248.

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, 809792 + ... + 809895.

It is an arithmetic number, because the mean of its divisors is an integer number (13227452).

Almost surely, 2^84223724 is an apocalyptic number.

It is an amenable number.

84223724 is a deficient number, since it is larger than the sum of its proper divisors (74505700).

84223724 is a wasteful number, since it uses less digits than its factorization.

84223724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619704 (or 1619702 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 84223724 is about 9177.3484187972. The cubic root of 84223724 is about 438.3403802434.

The spelling of 84223724 in words is "eighty-four million, two hundred twenty-three thousand, seven hundred twenty-four".