80319957 has 16 divisors (see below), whose sum is σ = 108957312. Its totient is φ = 52619840.

The previous prime is 80319923. The next prime is 80319959. The reversal of 80319957 is 75991308.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80319957 - 2¹² = 80315861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80319959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118303 + ... + 118979.

It is an arithmetic number, because the mean of its divisors is an integer number (6809832).

Almost surely, 2^80319957 is an apocalyptic number.

It is an amenable number.

80319957 is a deficient number, since it is larger than the sum of its proper divisors (28637355).

80319957 is a wasteful number, since it uses less digits than its factorization.

80319957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 80319957 is about 8962.1402019830. The cubic root of 80319957 is about 431.4606126048.

The spelling of 80319957 in words is "eighty million, three hundred nineteen thousand, nine hundred fifty-seven".