867856994 has 8 divisors (see below), whose sum is σ = 1301937600. Its totient is φ = 433877796.

The previous prime is 867856993. The next prime is 867857009. The reversal of 867856994 is 499658768.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (867856993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1907 + ... + 41705.

It is an arithmetic number, because the mean of its divisors is an integer number (162742200).

Almost surely, 2^867856994 is an apocalyptic number.

867856994 is a deficient number, since it is larger than the sum of its proper divisors (434080606).

867856994 is a wasteful number, since it uses less digits than its factorization.

867856994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50704.

The product of its digits is 26127360, while the sum is 62.

The square root of 867856994 is about 29459.4126553806. The cubic root of 867856994 is about 953.8557951175.

The spelling of 867856994 in words is "eight hundred sixty-seven million, eight hundred fifty-six thousand, nine hundred ninety-four".