867321969 has 4 divisors (see below), whose sum is σ = 1156429296. Its totient is φ = 578214644.

The previous prime is 867321953. The next prime is 867322009. The reversal of 867321969 is 969123768.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 867321969 - 2⁴ = 867321953 is a prime.

It is a super-2 number, since 2×867321969² = 1504494795820073922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (867321919) 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, 144553659 + ... + 144553664.

It is an arithmetic number, because the mean of its divisors is an integer number (289107324).

Almost surely, 2^867321969 is an apocalyptic number.

It is an amenable number.

867321969 is a deficient number, since it is larger than the sum of its proper divisors (289107327).

867321969 is a wasteful number, since it uses less digits than its factorization.

867321969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289107326.

The product of its digits is 979776, while the sum is 51.

The square root of 867321969 is about 29450.3305414387. The cubic root of 867321969 is about 953.6597406951.

The spelling of 867321969 in words is "eight hundred sixty-seven million, three hundred twenty-one thousand, nine hundred sixty-nine".