84990572 has 24 divisors (see below), whose sum is σ = 158907840. Its totient is φ = 39655440.

The previous prime is 84990569. The next prime is 84990593. The reversal of 84990572 is 27509948.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3254 + ... + 13437.

It is an arithmetic number, because the mean of its divisors is an integer number (6621160).

Almost surely, 2^84990572 is an apocalyptic number.

It is an amenable number.

84990572 is a deficient number, since it is larger than the sum of its proper divisors (73917268).

84990572 is a wasteful number, since it uses less digits than its factorization.

84990572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16781 (or 16779 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 84990572 is about 9219.0331380248. The cubic root of 84990572 is about 439.6667104147. Note that the first 3 decimals are identical.

The spelling of 84990572 in words is "eighty-four million, nine hundred ninety thousand, five hundred seventy-two".