80399023 has 4 divisors (see below), whose sum is σ = 81012888. Its totient is φ = 79785160.

The previous prime is 80399021. The next prime is 80399041. The reversal of 80399023 is 32099308.

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

It is a cyclic number.

It is not a de Polignac number, because 80399023 - 2¹ = 80399021 is a prime.

It is a super-3 number, since 3×80399023³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80399023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80399021) 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, 306736 + ... + 306997.

It is an arithmetic number, because the mean of its divisors is an integer number (20253222).

Almost surely, 2^80399023 is an apocalyptic number.

80399023 is a deficient number, since it is larger than the sum of its proper divisors (613865).

80399023 is a wasteful number, since it uses less digits than its factorization.

80399023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613864.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 80399023 is about 8966.5502284881. The cubic root of 80399023 is about 431.6021410552.

The spelling of 80399023 in words is "eighty million, three hundred ninety-nine thousand, twenty-three".