80864215 has 8 divisors (see below), whose sum is σ = 97091280. Its totient is φ = 64655232.

The previous prime is 80864207. The next prime is 80864219. The reversal of 80864215 is 51246808.

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 80864215 - 2³ = 80864207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80864219) 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, 9007 + ... + 15583.

It is an arithmetic number, because the mean of its divisors is an integer number (12136410).

Almost surely, 2^80864215 is an apocalyptic number.

80864215 is a deficient number, since it is larger than the sum of its proper divisors (16227065).

80864215 is a wasteful number, since it uses less digits than its factorization.

80864215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9041.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 80864215 is about 8992.4532247880. The cubic root of 80864215 is about 432.4329632030.

The spelling of 80864215 in words is "eighty million, eight hundred sixty-four thousand, two hundred fifteen".