879772145 has 16 divisors (see below), whose sum is σ = 1211604480. Its totient is φ = 600742464.

The previous prime is 879772123. The next prime is 879772163. The reversal of 879772145 is 541277978.

It is a happy number.

It is not a de Polignac number, because 879772145 - 2²⁴ = 862994929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 879772093 and 879772102.

It is an unprimeable number.

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, 44222 + ... + 60951.

It is an arithmetic number, because the mean of its divisors is an integer number (75725280).

Almost surely, 2^879772145 is an apocalyptic number.

It is an amenable number.

879772145 is a deficient number, since it is larger than the sum of its proper divisors (331832335).

879772145 is a wasteful number, since it uses less digits than its factorization.

879772145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105424.

The product of its digits is 987840, while the sum is 50.

The square root of 879772145 is about 29660.9532045078. The cubic root of 879772145 is about 958.2012560177.

The spelling of 879772145 in words is "eight hundred seventy-nine million, seven hundred seventy-two thousand, one hundred forty-five".