84520784 has 20 divisors (see below), whose sum is σ = 164301984. Its totient is φ = 42120288.

The previous prime is 84520783. The next prime is 84520789. The reversal of 84520784 is 48702548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84520783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3692 + ... + 13515.

Almost surely, 2^84520784 is an apocalyptic number.

It is an amenable number.

84520784 is a deficient number, since it is larger than the sum of its proper divisors (79781200).

84520784 is a wasteful number, since it uses less digits than its factorization.

84520784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17522 (or 17516 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 84520784 is about 9193.5185864825. The cubic root of 84520784 is about 438.8551227941.

The spelling of 84520784 in words is "eighty-four million, five hundred twenty thousand, seven hundred eighty-four".