864354331 has 4 divisors (see below), whose sum is σ = 864485464. Its totient is φ = 864223200.

The previous prime is 864354319. The next prime is 864354343. The reversal of 864354331 is 133453468.

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

It is an interprime number because it is at equal distance from previous prime (864354319) and next prime (864354343).

It is a cyclic number.

It is not a de Polignac number, because 864354331 - 2²⁵ = 830799899 is a prime.

It is a super-2 number, since 2×864354331² = 1494216819036915122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864354371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55125 + ... + 69046.

It is an arithmetic number, because the mean of its divisors is an integer number (216121366).

Almost surely, 2^864354331 is an apocalyptic number.

864354331 is a deficient number, since it is larger than the sum of its proper divisors (131133).

864354331 is a wasteful number, since it uses less digits than its factorization.

864354331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131132.

The product of its digits is 103680, while the sum is 37.

The square root of 864354331 is about 29399.9035882773. The cubic root of 864354331 is about 952.5708137109.

The spelling of 864354331 in words is "eight hundred sixty-four million, three hundred fifty-four thousand, three hundred thirty-one".