861713194 has 16 divisors (see below), whose sum is σ = 1361213280. Its totient is φ = 407995920.

The previous prime is 861713191. The next prime is 861713201. The reversal of 861713194 is 491317168.

It is not an unprimeable number, because it can be changed into a prime (861713191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120129 + ... + 127099.

It is an arithmetic number, because the mean of its divisors is an integer number (85075830).

Almost surely, 2^861713194 is an apocalyptic number.

861713194 is a deficient number, since it is larger than the sum of its proper divisors (499500086).

861713194 is a wasteful number, since it uses less digits than its factorization.

861713194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10245.

The product of its digits is 36288, while the sum is 40.

The square root of 861713194 is about 29354.9517798957. The cubic root of 861713194 is about 951.5995928421.

The spelling of 861713194 in words is "eight hundred sixty-one million, seven hundred thirteen thousand, one hundred ninety-four".