879503949 has 12 divisors (see below), whose sum is σ = 1304730076. Its totient is φ = 570488832.

The previous prime is 879503929. The next prime is 879503951. The reversal of 879503949 is 949305978.

It can be written as a sum of positive squares in 2 ways, for example, as 680270724 + 199233225 = 26082^2 + 14115^2 .

It is a de Polignac number, because none of the positive numbers 2^k-879503949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 879503895 and 879503904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879503929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1320244 + ... + 1320909.

Almost surely, 2^879503949 is an apocalyptic number.

It is an amenable number.

879503949 is a deficient number, since it is larger than the sum of its proper divisors (425226127).

879503949 is a wasteful number, since it uses less digits than its factorization.

879503949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641196 (or 2641193 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The square root of 879503949 is about 29656.4318318978. The cubic root of 879503949 is about 958.1038778258.

The spelling of 879503949 in words is "eight hundred seventy-nine million, five hundred three thousand, nine hundred forty-nine".