86620984 has 16 divisors (see below), whose sum is σ = 171968400. Its totient is φ = 40762752.

The previous prime is 86620973. The next prime is 86621011. The reversal of 86620984 is 48902668.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 86620984.

It is a congruent number.

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, 318324 + ... + 318595.

It is an arithmetic number, because the mean of its divisors is an integer number (10748025).

Almost surely, 2^86620984 is an apocalyptic number.

It is an amenable number.

86620984 is a deficient number, since it is larger than the sum of its proper divisors (85347416).

86620984 is a wasteful number, since it uses less digits than its factorization.

86620984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636942 (or 636938 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 86620984 is about 9307.0394863243. The cubic root of 86620984 is about 442.4603626704.

The spelling of 86620984 in words is "eighty-six million, six hundred twenty thousand, nine hundred eighty-four".