864773 has 24 divisors (see below), whose sum is σ = 1159488. Its totient is φ = 628992.

The previous prime is 864757. The next prime is 864781. The reversal of 864773 is 377468.

It is not a de Polignac number, because 864773 - 2⁴ = 864757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20090 + ... + 20132.

It is an arithmetic number, because the mean of its divisors is an integer number (48312).

2⁸⁶⁴⁷⁷³ is an apocalyptic number.

It is an amenable number.

864773 is a deficient number, since it is larger than the sum of its proper divisors (294715).

864773 is a wasteful number, since it uses less digits than its factorization.

864773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 80 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 864773 is about 929.9317179234. The cubic root of 864773 is about 95.2724588416.

The spelling of 864773 in words is "eight hundred sixty-four thousand, seven hundred seventy-three".