861085374 has 16 divisors (see below), whose sum is σ = 1722623760. Its totient is φ = 286952960.

The previous prime is 861085283. The next prime is 861085387. The reversal of 861085374 is 473580168.

It is a super-3 number, since 3×861085374³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9004 + ... + 42464.

It is an arithmetic number, because the mean of its divisors is an integer number (107663985).

Almost surely, 2^861085374 is an apocalyptic number.

861085374 is an abundant number, since it is smaller than the sum of its proper divisors (861538386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

861085374 is a wasteful number, since it uses less digits than its factorization.

861085374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37755.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 861085374 is about 29344.2562352499. The cubic root of 861085374 is about 951.3684337935.

The spelling of 861085374 in words is "eight hundred sixty-one million, eighty-five thousand, three hundred seventy-four".