80043997 has 4 divisors (see below), whose sum is σ = 87320736. Its totient is φ = 72767260.

The previous prime is 80043991. The next prime is 80044001. The reversal of 80043997 is 79934008.

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 80043997 - 2⁷ = 80043869 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80043991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3638353 + ... + 3638374.

It is an arithmetic number, because the mean of its divisors is an integer number (21830184).

Almost surely, 2^80043997 is an apocalyptic number.

It is an amenable number.

80043997 is a deficient number, since it is larger than the sum of its proper divisors (7276739).

80043997 is a wasteful number, since it uses less digits than its factorization.

80043997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276738.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 80043997 is about 8946.7310790031. The cubic root of 80043997 is about 430.9659140827.

The spelling of 80043997 in words is "eighty million, forty-three thousand, nine hundred ninety-seven".