879212505 has 16 divisors (see below), whose sum is σ = 1407107520. Its totient is φ = 468790848.

The previous prime is 879212489. The next prime is 879212527. The reversal of 879212505 is 505212978.

It is not a de Polignac number, because 879212505 - 2⁴ = 879212489 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 110811 + ... + 118479.

It is an arithmetic number, because the mean of its divisors is an integer number (87944220).

Almost surely, 2^879212505 is an apocalyptic number.

It is an amenable number.

879212505 is a deficient number, since it is larger than the sum of its proper divisors (527895015).

879212505 is a wasteful number, since it uses less digits than its factorization.

879212505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15320.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 879212505 is about 29651.5177520477. The cubic root of 879212505 is about 957.9980361650.

The spelling of 879212505 in words is "eight hundred seventy-nine million, two hundred twelve thousand, five hundred five".