879401217 has 8 divisors (see below), whose sum is σ = 1177441920. Its totient is φ = 583814000.

The previous prime is 879401207. The next prime is 879401239. The reversal of 879401217 is 712104978.

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 879401217 - 2⁸ = 879400961 is a prime.

It is a super-2 number, since 2×879401217² = 1546693000922162178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (879401207) 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, 612534 + ... + 613967.

It is an arithmetic number, because the mean of its divisors is an integer number (147180240).

Almost surely, 2^879401217 is an apocalyptic number.

It is an amenable number.

879401217 is a deficient number, since it is larger than the sum of its proper divisors (298040703).

879401217 is a wasteful number, since it uses less digits than its factorization.

879401217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226743.

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 879401217 is about 29654.6997455715. The cubic root of 879401217 is about 958.0665720391.

The spelling of 879401217 in words is "eight hundred seventy-nine million, four hundred one thousand, two hundred seventeen".