879867199 has 2 divisors, whose sum is σ = 879867200. Its totient is φ = 879867198.

The previous prime is 879867193. The next prime is 879867211. The reversal of 879867199 is 991768978.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 879867199 - 2¹³ = 879859007 is a prime.

It is a super-2 number, since 2×879867199² = 1548332575752211202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 879867199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (879867193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439933599 + 439933600.

It is an arithmetic number, because the mean of its divisors is an integer number (439933600).

Almost surely, 2^879867199 is an apocalyptic number.

879867199 is a deficient number, since it is larger than the sum of its proper divisors (1).

879867199 is an equidigital number, since it uses as much as digits as its factorization.

879867199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 64.

The square root of 879867199 is about 29662.5555035300. Note that the first 4 decimals coincide. The cubic root of 879867199 is about 958.2357640368.

The spelling of 879867199 in words is "eight hundred seventy-nine million, eight hundred sixty-seven thousand, one hundred ninety-nine".