867260891 has 8 divisors (see below), whose sum is σ = 991952640. Its totient is φ = 742768488.

The previous prime is 867260881. The next prime is 867260923. The reversal of 867260891 is 198062768.

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

It is a de Polignac number, because none of the positive numbers 2^k-867260891 is a prime.

It is a super-2 number, since 2×867260891² = 1504282906116227762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (867260881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40391 + ... + 58016.

It is an arithmetic number, because the mean of its divisors is an integer number (123994080).

Almost surely, 2^867260891 is an apocalyptic number.

867260891 is a deficient number, since it is larger than the sum of its proper divisors (124691749).

867260891 is a wasteful number, since it uses less digits than its factorization.

867260891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99673.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 867260891 is about 29449.2935568920. The cubic root of 867260891 is about 953.6373541616.

The spelling of 867260891 in words is "eight hundred sixty-seven million, two hundred sixty thousand, eight hundred ninety-one".