80496639 has 8 divisors (see below), whose sum is σ = 119254320. Its totient is φ = 53664408.

The previous prime is 80496631. The next prime is 80496641. The reversal of 80496639 is 93669408.

80496639 is a `hidden beast` number, since 8 + 0 + 4 + 9 + 6 + 639 = 666.

It is not a de Polignac number, because 80496639 - 2³ = 80496631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80496594 and 80496603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80496631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1490652 + ... + 1490705.

It is an arithmetic number, because the mean of its divisors is an integer number (14906790).

Almost surely, 2^80496639 is an apocalyptic number.

80496639 is a deficient number, since it is larger than the sum of its proper divisors (38757681).

80496639 is a wasteful number, since it uses less digits than its factorization.

80496639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981366 (or 2981360 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 80496639 is about 8971.9919193009. The cubic root of 80496639 is about 431.7767461411.

The spelling of 80496639 in words is "eighty million, four hundred ninety-six thousand, six hundred thirty-nine".