861934347 has 6 divisors (see below), whose sum is σ = 1245016292. Its totient is φ = 574622892.

The previous prime is 861934313. The next prime is 861934369. The reversal of 861934347 is 743439168.

It is not a de Polignac number, because 861934347 - 2⁷ = 861934219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (861934387) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47885233 + ... + 47885250.

Almost surely, 2^861934347 is an apocalyptic number.

861934347 is a deficient number, since it is larger than the sum of its proper divisors (383081945).

861934347 is a wasteful number, since it uses less digits than its factorization.

861934347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95770489 (or 95770486 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 861934347 is about 29358.7184154895. The cubic root of 861934347 is about 951.6809931291.

The spelling of 861934347 in words is "eight hundred sixty-one million, nine hundred thirty-four thousand, three hundred forty-seven".