80999418 has 8 divisors (see below), whose sum is σ = 161998848. Its totient is φ = 26999804.

The previous prime is 80999383. The next prime is 80999419. The reversal of 80999418 is 81499908.

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

80999418 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (80999419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6749946 + ... + 6749957.

It is an arithmetic number, because the mean of its divisors is an integer number (20249856).

Almost surely, 2^80999418 is an apocalyptic number.

80999418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

80999418 is a wasteful number, since it uses less digits than its factorization.

80999418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13499908.

The product of its (nonzero) digits is 186624, while the sum is 48.

The square root of 80999418 is about 8999.9676666086. The cubic root of 80999418 is about 432.6738348067.

The spelling of 80999418 in words is "eighty million, nine hundred ninety-nine thousand, four hundred eighteen".