80699844 has 12 divisors (see below), whose sum is σ = 188299664. Its totient is φ = 26899944.

The previous prime is 80699809. The next prime is 80699869. The reversal of 80699844 is 44899608.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 80699793 and 80699802.

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, 3362482 + ... + 3362505.

Almost surely, 2^80699844 is an apocalyptic number.

It is an amenable number.

80699844 is an abundant number, since it is smaller than the sum of its proper divisors (107599820).

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

80699844 is a wasteful number, since it uses less digits than its factorization.

80699844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6724994 (or 6724992 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 80699844 is about 8983.3091898253. The cubic root of 80699844 is about 432.1397653049.

The spelling of 80699844 in words is "eighty million, six hundred ninety-nine thousand, eight hundred forty-four".