80904387 has 8 divisors (see below), whose sum is σ = 108012736. Its totient is φ = 53866152.

The previous prime is 80904379. The next prime is 80904401. The reversal of 80904387 is 78340908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80904387 - 2³ = 80904379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80904347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14773 + ... + 19494.

It is an arithmetic number, because the mean of its divisors is an integer number (13501592).

Almost surely, 2^80904387 is an apocalyptic number.

80904387 is a deficient number, since it is larger than the sum of its proper divisors (27108349).

80904387 is a wasteful number, since it uses less digits than its factorization.

80904387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35057.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 80904387 is about 8994.6865982090. The cubic root of 80904387 is about 432.5045598548.

The spelling of 80904387 in words is "eighty million, nine hundred four thousand, three hundred eighty-seven".