80918374 has 4 divisors (see below), whose sum is σ = 121377564. Its totient is φ = 40459186.

The previous prime is 80918363. The next prime is 80918399. The reversal of 80918374 is 47381908.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20229592 + ... + 20229595.

It is an arithmetic number, because the mean of its divisors is an integer number (30344391).

Almost surely, 2^80918374 is an apocalyptic number.

80918374 is a deficient number, since it is larger than the sum of its proper divisors (40459190).

80918374 is a wasteful number, since it uses less digits than its factorization.

80918374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40459189.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 80918374 is about 8995.4640791901. The cubic root of 80918374 is about 432.5294826595.

The spelling of 80918374 in words is "eighty million, nine hundred eighteen thousand, three hundred seventy-four".