80815 has 8 divisors (see below), whose sum is σ = 110880. Its totient is φ = 55392.

The previous prime is 80809. The next prime is 80819. The reversal of 80815 is 51808.

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 80815 - 2⁵ = 80783 is a prime.

80815 is a lucky number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1120 + ... + 1189.

It is an arithmetic number, because the mean of its divisors is an integer number (13860).

2⁸⁰⁸¹⁵ is an apocalyptic number.

80815 is a deficient number, since it is larger than the sum of its proper divisors (30065).

80815 is a wasteful number, since it uses less digits than its factorization.

80815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 80815 is about 284.2797917545. The cubic root of 80815 is about 43.2345217314.

The spelling of 80815 in words is "eighty thousand, eight hundred fifteen".