80643364 has 12 divisors (see below), whose sum is σ = 142025884. Its totient is φ = 40064544.

The previous prime is 80643337. The next prime is 80643371. The reversal of 80643364 is 46334608.

It can be written as a sum of positive squares in 2 ways, for example, as 38937600 + 41705764 = 6240^2 + 6458^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 63579 + ... + 64834.

Almost surely, 2^80643364 is an apocalyptic number.

It is an amenable number.

80643364 is a deficient number, since it is larger than the sum of its proper divisors (61382520).

80643364 is a wasteful number, since it uses less digits than its factorization.

80643364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128574 (or 128572 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 80643364 is about 8980.1650318911. The cubic root of 80643364 is about 432.0389268192.

The spelling of 80643364 in words is "eighty million, six hundred forty-three thousand, three hundred sixty-four".