879306221 has 8 divisors (see below), whose sum is σ = 922287360. Its totient is φ = 837336528.

The previous prime is 879306209. The next prime is 879306229. The reversal of 879306221 is 122603978.

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 879306221 - 2¹⁴ = 879289837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879306229) 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, 251081 + ... + 254558.

It is an arithmetic number, because the mean of its divisors is an integer number (115285920).

Almost surely, 2^879306221 is an apocalyptic number.

It is an amenable number.

879306221 is a deficient number, since it is larger than the sum of its proper divisors (42981139).

879306221 is a wasteful number, since it uses less digits than its factorization.

879306221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505723.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 879306221 is about 29653.0980000404. The cubic root of 879306221 is about 958.0320728944.

The spelling of 879306221 in words is "eight hundred seventy-nine million, three hundred six thousand, two hundred twenty-one".