861712395 has 16 divisors (see below), whose sum is σ = 1385279232. Its totient is φ = 457400160.

The previous prime is 861712381. The next prime is 861712403. The reversal of 861712395 is 593217168.

It is not a de Polignac number, because 861712395 - 2⁶ = 861712331 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132967 + ... + 139296.

It is an arithmetic number, because the mean of its divisors is an integer number (86579952).

Almost surely, 2^861712395 is an apocalyptic number.

861712395 is a deficient number, since it is larger than the sum of its proper divisors (523566837).

861712395 is a wasteful number, since it uses less digits than its factorization.

861712395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272482.

The product of its digits is 90720, while the sum is 42.

The square root of 861712395 is about 29354.9381706043. The cubic root of 861712395 is about 951.5992987271.

It can be divided in two parts, 8617 and 12395, that added together give a palindrome (21012).

The spelling of 861712395 in words is "eight hundred sixty-one million, seven hundred twelve thousand, three hundred ninety-five".