870947793 has 24 divisors (see below), whose sum is σ = 1291399200. Its totient is φ = 565419264.

The previous prime is 870947767. The next prime is 870947809. The reversal of 870947793 is 397749078.

870947793 is a `hidden beast` number, since 87 + 0 + 9 + 477 + 93 = 666.

It is not a de Polignac number, because 870947793 - 2⁵ = 870947761 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (870947713) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49153 + ... + 64481.

It is an arithmetic number, because the mean of its divisors is an integer number (53808300).

Almost surely, 2^870947793 is an apocalyptic number.

It is an amenable number.

870947793 is a deficient number, since it is larger than the sum of its proper divisors (420451407).

870947793 is a wasteful number, since it uses less digits than its factorization.

870947793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15501 (or 15498 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 54.

The square root of 870947793 is about 29511.8246301377. The cubic root of 870947793 is about 954.9868123139.

The spelling of 870947793 in words is "eight hundred seventy million, nine hundred forty-seven thousand, seven hundred ninety-three".