863572 has 6 divisors (see below), whose sum is σ = 1511258. Its totient is φ = 431784.

The previous prime is 863561. The next prime is 863593. The reversal of 863572 is 275368.

863572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 646416 + 217156 = 804^2 + 466^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107943 + ... + 107950.

2⁸⁶³⁵⁷² is an apocalyptic number.

It is an amenable number.

863572 is a deficient number, since it is larger than the sum of its proper divisors (647686).

863572 is a wasteful number, since it uses less digits than its factorization.

863572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215897 (or 215895 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 863572 is about 929.2857472274. The cubic root of 863572 is about 95.2283334915.

The spelling of 863572 in words is "eight hundred sixty-three thousand, five hundred seventy-two".