80631318 has 8 divisors (see below), whose sum is σ = 161262648. Its totient is φ = 26877104.

The previous prime is 80631311. The next prime is 80631319. The reversal of 80631318 is 81313608.

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

80631318 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80631311) by changing a digit.

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, 6719271 + ... + 6719282.

It is an arithmetic number, because the mean of its divisors is an integer number (20157831).

Almost surely, 2^80631318 is an apocalyptic number.

80631318 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.

80631318 is a wasteful number, since it uses less digits than its factorization.

80631318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13438558.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 80631318 is about 8979.4943064741. The cubic root of 80631318 is about 432.0174139928.

The spelling of 80631318 in words is "eighty million, six hundred thirty-one thousand, three hundred eighteen".