80631534 has 8 divisors (see below), whose sum is σ = 161263080. Its totient is φ = 26877176.

The previous prime is 80631533. The next prime is 80631539. The reversal of 80631534 is 43513608.

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

80631534 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80631533) 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, 6719289 + ... + 6719300.

It is an arithmetic number, because the mean of its divisors is an integer number (20157885).

Almost surely, 2^80631534 is an apocalyptic number.

80631534 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.

80631534 is a wasteful number, since it uses less digits than its factorization.

80631534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13438594.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 80631534 is about 8979.5063338694. The cubic root of 80631534 is about 432.0177997638.

The spelling of 80631534 in words is "eighty million, six hundred thirty-one thousand, five hundred thirty-four".