80987315 has 8 divisors (see below), whose sum is σ = 97307808. Its totient is φ = 64707840.

The previous prime is 80987293. The next prime is 80987363. The reversal of 80987315 is 51378908.

It is a happy number.

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

It is not a de Polignac number, because 80987315 - 2⁸ = 80987059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5726 + ... + 13955.

It is an arithmetic number, because the mean of its divisors is an integer number (12163476).

Almost surely, 2^80987315 is an apocalyptic number.

80987315 is a deficient number, since it is larger than the sum of its proper divisors (16320493).

80987315 is a wasteful number, since it uses less digits than its factorization.

80987315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20509.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 80987315 is about 8999.2952501849. The cubic root of 80987315 is about 432.6522835726.

The spelling of 80987315 in words is "eighty million, nine hundred eighty-seven thousand, three hundred fifteen".