879161977 has 4 divisors (see below), whose sum is σ = 925433680. Its totient is φ = 832890276.

The previous prime is 879161929. The next prime is 879161993. The reversal of 879161977 is 779161978.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 879161977 - 2¹¹ = 879159929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (879164977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23135823 + ... + 23135860.

It is an arithmetic number, because the mean of its divisors is an integer number (231358420).

Almost surely, 2^879161977 is an apocalyptic number.

It is an amenable number.

879161977 is a deficient number, since it is larger than the sum of its proper divisors (46271703).

879161977 is a wasteful number, since it uses less digits than its factorization.

879161977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46271702.

The product of its digits is 1333584, while the sum is 55.

The square root of 879161977 is about 29650.6657092214. The cubic root of 879161977 is about 957.9796838889.

Subtracting from 879161977 its reverse (779161978), we obtain a palindrome (99999999).

The spelling of 879161977 in words is "eight hundred seventy-nine million, one hundred sixty-one thousand, nine hundred seventy-seven".