861313004 has 6 divisors (see below), whose sum is σ = 1507297764. Its totient is φ = 430656500.

The previous prime is 861312967. The next prime is 861313009. The reversal of 861313004 is 400313168.

It is not an unprimeable number, because it can be changed into a prime (861313009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107664122 + ... + 107664129.

It is an arithmetic number, because the mean of its divisors is an integer number (251216294).

Almost surely, 2^861313004 is an apocalyptic number.

It is an amenable number.

861313004 is a deficient number, since it is larger than the sum of its proper divisors (645984760).

861313004 is a wasteful number, since it uses less digits than its factorization.

861313004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215328255 (or 215328253 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 861313004 is about 29348.1345914864. The cubic root of 861313004 is about 951.4522585892.

The spelling of 861313004 in words is "eight hundred sixty-one million, three hundred thirteen thousand, four".