80404899 has 4 divisors (see below), whose sum is σ = 107206536. Its totient is φ = 53603264.

The previous prime is 80404897. The next prime is 80404913. The reversal of 80404899 is 99840408.

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 80404899 - 2¹ = 80404897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80404899.

It is not an unprimeable number, because it can be changed into a prime (80404897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13400814 + ... + 13400819.

It is an arithmetic number, because the mean of its divisors is an integer number (26801634).

Almost surely, 2^80404899 is an apocalyptic number.

80404899 is a deficient number, since it is larger than the sum of its proper divisors (26801637).

80404899 is a wasteful number, since it uses less digits than its factorization.

80404899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26801636.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 80404899 is about 8966.8778847490. The cubic root of 80404899 is about 431.6126554135.

The spelling of 80404899 in words is "eighty million, four hundred four thousand, eight hundred ninety-nine".