80506915 has 8 divisors (see below), whose sum is σ = 96707520. Its totient is φ = 64339392.

The previous prime is 80506901. The next prime is 80506919. The reversal of 80506915 is 51960508.

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

It is a cyclic number.

It is not a de Polignac number, because 80506915 - 2⁷ = 80506787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80506919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2554 + ... + 12943.

It is an arithmetic number, because the mean of its divisors is an integer number (12088440).

Almost surely, 2^80506915 is an apocalyptic number.

80506915 is a deficient number, since it is larger than the sum of its proper divisors (16200605).

80506915 is a wasteful number, since it uses less digits than its factorization.

80506915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16541.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 80506915 is about 8972.5645720719. The cubic root of 80506915 is about 431.7951185399.

The spelling of 80506915 in words is "eighty million, five hundred six thousand, nine hundred fifteen".