870479493 has 16 divisors (see below), whose sum is σ = 1251847296. Its totient is φ = 534853440.

The previous prime is 870479479. The next prime is 870479497. The reversal of 870479493 is 394974078.

It is a happy number.

It is not a de Polignac number, because 870479493 - 2⁵ = 870479461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870479497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8896 + ... + 42662.

It is an arithmetic number, because the mean of its divisors is an integer number (78240456).

Almost surely, 2^870479493 is an apocalyptic number.

It is an amenable number.

870479493 is a deficient number, since it is larger than the sum of its proper divisors (381367803).

870479493 is a wasteful number, since it uses less digits than its factorization.

870479493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34444.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 870479493 is about 29503.8894554599. The cubic root of 870479493 is about 954.8156193113.

The spelling of 870479493 in words is "eight hundred seventy million, four hundred seventy-nine thousand, four hundred ninety-three".