80089815 has 16 divisors (see below), whose sum is σ = 138001248. Its totient is φ = 39428736.

The previous prime is 80089811. The next prime is 80089817. The reversal of 80089815 is 51898008.

It is not a de Polignac number, because 80089815 - 2² = 80089811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80089811) 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 15 ways as a sum of consecutive naturals, for example, 205164 + ... + 205553.

It is an arithmetic number, because the mean of its divisors is an integer number (8625078).

Almost surely, 2^80089815 is an apocalyptic number.

80089815 is a deficient number, since it is larger than the sum of its proper divisors (57911433).

80089815 is a wasteful number, since it uses less digits than its factorization.

80089815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410738.

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 80089815 is about 8949.2913127242. The cubic root of 80089815 is about 431.0481281591.

The spelling of 80089815 in words is "eighty million, eighty-nine thousand, eight hundred fifteen".