864091322 has 4 divisors (see below), whose sum is σ = 1296136986. Its totient is φ = 432045660.

The previous prime is 864091307. The next prime is 864091331. The reversal of 864091322 is 223190468.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 551827081 + 312264241 = 23491^2 + 17671^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216022829 + ... + 216022832.

Almost surely, 2^864091322 is an apocalyptic number.

864091322 is a deficient number, since it is larger than the sum of its proper divisors (432045664).

864091322 is a wasteful number, since it uses less digits than its factorization.

864091322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432045663.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 864091322 is about 29395.4302911184. The cubic root of 864091322 is about 952.4741866281.

The spelling of 864091322 in words is "eight hundred sixty-four million, ninety-one thousand, three hundred twenty-two".