80867215 has 32 divisors (see below), whose sum is σ = 120730176. Its totient is φ = 51087360.

The previous prime is 80867203. The next prime is 80867221. The reversal of 80867215 is 51276808.

It is not a de Polignac number, because 80867215 - 2²¹ = 78770063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8829 + ... + 15481.

It is an arithmetic number, because the mean of its divisors is an integer number (3772818).

Almost surely, 2^80867215 is an apocalyptic number.

80867215 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

80867215 is a deficient number, since it is larger than the sum of its proper divisors (39862961).

80867215 is a wasteful number, since it uses less digits than its factorization.

80867215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6699.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 80867215 is about 8992.6200297800. The cubic root of 80867215 is about 432.4383107800.

The spelling of 80867215 in words is "eighty million, eight hundred sixty-seven thousand, two hundred fifteen".