80515797 has 8 divisors (see below), whose sum is σ = 107442720. Its totient is φ = 53633040.

The previous prime is 80515769. The next prime is 80515837. The reversal of 80515797 is 79751508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80515797 - 2⁶ = 80515733 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80515697) 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 7 ways as a sum of consecutive naturals, for example, 6522 + ... + 14267.

It is an arithmetic number, because the mean of its divisors is an integer number (13430340).

Almost surely, 2^80515797 is an apocalyptic number.

It is an amenable number.

80515797 is a deficient number, since it is larger than the sum of its proper divisors (26926923).

80515797 is a wasteful number, since it uses less digits than its factorization.

80515797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22083.

The product of its (nonzero) digits is 88200, while the sum is 42.

The square root of 80515797 is about 8973.0595116716. The cubic root of 80515797 is about 431.8109973548.

The spelling of 80515797 in words is "eighty million, five hundred fifteen thousand, seven hundred ninety-seven".