864356473 has 4 divisors (see below), whose sum is σ = 865064448. Its totient is φ = 863648500.

The previous prime is 864356413. The next prime is 864356497. The reversal of 864356473 is 374653468.

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 864356473 - 2²⁵ = 830802041 is a prime.

It is a super-2 number, since 2×864356473² = 1494224224833999458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864356413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352153 + ... + 354598.

It is an arithmetic number, because the mean of its divisors is an integer number (216266112).

Almost surely, 2^864356473 is an apocalyptic number.

It is an amenable number.

864356473 is a deficient number, since it is larger than the sum of its proper divisors (707975).

864356473 is a wasteful number, since it uses less digits than its factorization.

864356473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707974.

The product of its digits is 1451520, while the sum is 46.

The square root of 864356473 is about 29399.9400169456. The cubic root of 864356473 is about 952.5716005815.

The spelling of 864356473 in words is "eight hundred sixty-four million, three hundred fifty-six thousand, four hundred seventy-three".