80918386 has 8 divisors (see below), whose sum is σ = 123667884. Its totient is φ = 39695760.

The previous prime is 80918363. The next prime is 80918399. The reversal of 80918386 is 68381908.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 79762761 + 1155625 = 8931^2 + 1075^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381585 + ... + 381796.

Almost surely, 2^80918386 is an apocalyptic number.

80918386 is a deficient number, since it is larger than the sum of its proper divisors (42749498).

80918386 is a wasteful number, since it uses less digits than its factorization.

80918386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763436.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 80918386 is about 8995.4647461929. The cubic root of 80918386 is about 432.5295040405.

The spelling of 80918386 in words is "eighty million, nine hundred eighteen thousand, three hundred eighty-six".