879778692 has 48 divisors (see below), whose sum is σ = 2456366080. Its totient is φ = 270700704.

The previous prime is 879778687. The next prime is 879778693. The reversal of 879778692 is 296877978.

It is not an unprimeable number, because it can be changed into a prime (879778693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311908 + ... + 314715.

Almost surely, 2^879778692 is an apocalyptic number.

It is an amenable number.

879778692 is an abundant number, since it is smaller than the sum of its proper divisors (1576587388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

879778692 is a wasteful number, since it uses less digits than its factorization.

879778692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626649 (or 626641 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 63.

The square root of 879778692 is about 29661.0635682539. The cubic root of 879778692 is about 958.2036328937.

It can be divided in two parts, 87977 and 8692, that added together give a palindrome (96669).

The spelling of 879778692 in words is "eight hundred seventy-nine million, seven hundred seventy-eight thousand, six hundred ninety-two".