80994169 has 4 divisors (see below), whose sum is σ = 85257040. Its totient is φ = 76731300.

The previous prime is 80994149. The next prime is 80994181. The reversal of 80994169 is 96149908.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80994169 - 2⁹ = 80993657 is a prime.

It is a super-2 number, since 2×80994169² = 13120110824001122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80994119) 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, 2131407 + ... + 2131444.

It is an arithmetic number, because the mean of its divisors is an integer number (21314260).

Almost surely, 2^80994169 is an apocalyptic number.

It is an amenable number.

80994169 is a deficient number, since it is larger than the sum of its proper divisors (4262871).

80994169 is a wasteful number, since it uses less digits than its factorization.

80994169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4262870.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 80994169 is about 8999.6760497253. The cubic root of 80994169 is about 432.6644884267.

The spelling of 80994169 in words is "eighty million, nine hundred ninety-four thousand, one hundred sixty-nine".