80984636 has 12 divisors (see below), whose sum is σ = 144397512. Its totient is φ = 39728208.

The previous prime is 80984627. The next prime is 80984653. The reversal of 80984636 is 63648908.

It is a super-2 number, since 2×80984636² = 13117022536104992, which contains 22 as substring.

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, 190790 + ... + 191213.

It is an arithmetic number, because the mean of its divisors is an integer number (12033126).

Almost surely, 2^80984636 is an apocalyptic number.

It is an amenable number.

80984636 is a deficient number, since it is larger than the sum of its proper divisors (63412876).

80984636 is a wasteful number, since it uses less digits than its factorization.

80984636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382060 (or 382058 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 80984636 is about 8999.1464039652. The cubic root of 80984636 is about 432.6475129150.

The spelling of 80984636 in words is "eighty million, nine hundred eighty-four thousand, six hundred thirty-six".