864492273 has 6 divisors (see below), whose sum is σ = 1248711074. Its totient is φ = 576328176.

The previous prime is 864492263. The next prime is 864492301. The reversal of 864492273 is 372294468.

It can be written as a sum of positive squares in only one way, i.e., 631868769 + 232623504 = 25137^2 + 15252^2 .

It is not a de Polignac number, because 864492273 - 2⁸ = 864492017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (864492203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48027340 + ... + 48027357.

Almost surely, 2^864492273 is an apocalyptic number.

It is an amenable number.

864492273 is a deficient number, since it is larger than the sum of its proper divisors (384218801).

864492273 is a wasteful number, since it uses less digits than its factorization.

864492273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96054703 (or 96054700 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 864492273 is about 29402.2494547611. The cubic root of 864492273 is about 952.6214844945.

The spelling of 864492273 in words is "eight hundred sixty-four million, four hundred ninety-two thousand, two hundred seventy-three".