879961139 has 8 divisors (see below), whose sum is σ = 884247840. Its totient is φ = 875682496.

The previous prime is 879961129. The next prime is 879961151. The reversal of 879961139 is 931169978.

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 879961139 - 2¹⁶ = 879895603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (879961129) 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, 366527 + ... + 368919.

It is an arithmetic number, because the mean of its divisors is an integer number (110530980).

Almost surely, 2^879961139 is an apocalyptic number.

879961139 is a deficient number, since it is larger than the sum of its proper divisors (4286701).

879961139 is a wasteful number, since it uses less digits than its factorization.

879961139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029.

The product of its digits is 734832, while the sum is 53.

The square root of 879961139 is about 29664.1389391299. The cubic root of 879961139 is about 958.2698651923.

The spelling of 879961139 in words is "eight hundred seventy-nine million, nine hundred sixty-one thousand, one hundred thirty-nine".