867113891 has 12 divisors (see below), whose sum is σ = 1026344592. Its totient is φ = 717606624.

The previous prime is 867113873. The next prime is 867113899. The reversal of 867113891 is 198311768.

It is not a de Polignac number, because 867113891 - 2⁶ = 867113827 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (867113899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67760 + ... + 79533.

It is an arithmetic number, because the mean of its divisors is an integer number (85528716).

Almost surely, 2^867113891 is an apocalyptic number.

867113891 is a deficient number, since it is larger than the sum of its proper divisors (159230701).

867113891 is a wasteful number, since it uses less digits than its factorization.

867113891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147358 (or 147329 counting only the distinct ones).

The product of its digits is 72576, while the sum is 44.

The square root of 867113891 is about 29446.7976357362. The cubic root of 867113891 is about 953.5834708708.

The spelling of 867113891 in words is "eight hundred sixty-seven million, one hundred thirteen thousand, eight hundred ninety-one".