215080879 has 4 divisors (see below), whose sum is σ = 231625576. Its totient is φ = 198536184.

The previous prime is 215080867. The next prime is 215080903. The reversal of 215080879 is 978080512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 215080879 - 2⁵ = 215080847 is a prime.

It is a super-2 number, since 2×215080879² = 92519569022825282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215080819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8272329 + ... + 8272354.

It is an arithmetic number, because the mean of its divisors is an integer number (57906394).

Almost surely, 2^215080879 is an apocalyptic number.

215080879 is a deficient number, since it is larger than the sum of its proper divisors (16544697).

215080879 is a wasteful number, since it uses less digits than its factorization.

215080879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16544696.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 215080879 is about 14665.6359903006. The cubic root of 215080879 is about 599.1477520660.

The spelling of 215080879 in words is "two hundred fifteen million, eighty thousand, eight hundred seventy-nine".