80811994 has 8 divisors (see below), whose sum is σ = 121305888. Its totient is φ = 40376700.

The previous prime is 80811989. The next prime is 80812001. The reversal of 80811994 is 49911808.

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, 11022 + ... + 16825.

It is an arithmetic number, because the mean of its divisors is an integer number (15163236).

Almost surely, 2^80811994 is an apocalyptic number.

80811994 is a deficient number, since it is larger than the sum of its proper divisors (40493894).

80811994 is a wasteful number, since it uses less digits than its factorization.

80811994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29300.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 80811994 is about 8989.5491544348. The cubic root of 80811994 is about 432.3398567340.

The spelling of 80811994 in words is "eighty million, eight hundred eleven thousand, nine hundred ninety-four".