80004636 has 18 divisors (see below), whose sum is σ = 202234032. Its totient is φ = 26668200.

The previous prime is 80004629. The next prime is 80004637. The reversal of 80004636 is 63640008.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80004637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111140 + ... + 1111211.

It is an arithmetic number, because the mean of its divisors is an integer number (11235224).

Almost surely, 2^80004636 is an apocalyptic number.

It is an amenable number.

80004636 is an abundant number, since it is smaller than the sum of its proper divisors (122229396).

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

80004636 is a wasteful number, since it uses less digits than its factorization.

80004636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222361 (or 2222356 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 80004636 is about 8944.5310665233. The cubic root of 80004636 is about 430.8952611450.

The spelling of 80004636 in words is "eighty million, four thousand, six hundred thirty-six".