879545947 has 16 divisors (see below), whose sum is σ = 1021849600. Its totient is φ = 741480480.

The previous prime is 879545893. The next prime is 879545977. The reversal of 879545947 is 749545978.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-879545947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 879545891 and 879545900.

It is not an unprimeable number, because it can be changed into a prime (879545977) 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 15 ways as a sum of consecutive naturals, for example, 146929 + ... + 152797.

It is an arithmetic number, because the mean of its divisors is an integer number (63865600).

Almost surely, 2^879545947 is an apocalyptic number.

879545947 is a deficient number, since it is larger than the sum of its proper divisors (142303653).

879545947 is a wasteful number, since it uses less digits than its factorization.

879545947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6226.

The product of its digits is 12700800, while the sum is 58.

The square root of 879545947 is about 29657.1398991879. The cubic root of 879545947 is about 958.1191280155.

The spelling of 879545947 in words is "eight hundred seventy-nine million, five hundred forty-five thousand, nine hundred forty-seven".