80942099 has 4 divisors (see below), whose sum is σ = 92505264. Its totient is φ = 69378936.

The previous prime is 80942093. The next prime is 80942101. The reversal of 80942099 is 99024908.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80942099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80942093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5781572 + ... + 5781585.

It is an arithmetic number, because the mean of its divisors is an integer number (23126316).

Almost surely, 2^80942099 is an apocalyptic number.

80942099 is a deficient number, since it is larger than the sum of its proper divisors (11563165).

80942099 is a wasteful number, since it uses less digits than its factorization.

80942099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11563164.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 80942099 is about 8996.7827027221. The cubic root of 80942099 is about 432.5717506007.

The spelling of 80942099 in words is "eighty million, nine hundred forty-two thousand, ninety-nine".