84979636 has 12 divisors (see below), whose sum is σ = 169959328. Its totient is φ = 36419832.

The previous prime is 84979627. The next prime is 84979667. The reversal of 84979636 is 63697948.

84979636 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1517466 + ... + 1517521.

Almost surely, 2^84979636 is an apocalyptic number.

It is an amenable number.

84979636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84979636 is a wasteful number, since it uses less digits than its factorization.

84979636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034998 (or 3034996 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 52.

The square root of 84979636 is about 9218.4399981776. The cubic root of 84979636 is about 439.6478518469.

The spelling of 84979636 in words is "eighty-four million, nine hundred seventy-nine thousand, six hundred thirty-six".