863901 has 6 divisors (see below), whose sum is σ = 1247870. Its totient is φ = 575928.

The previous prime is 863899. The next prime is 863909. The reversal of 863901 is 109368.

It can be written as a sum of positive squares in only one way, i.e., 562500 + 301401 = 750^2 + 549^2 .

It is not a de Polignac number, because 863901 - 2¹ = 863899 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 (863909) 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, 47986 + ... + 48003.

2⁸⁶³⁹⁰¹ is an apocalyptic number.

It is an amenable number.

863901 is a deficient number, since it is larger than the sum of its proper divisors (383969).

863901 is a wasteful number, since it uses less digits than its factorization.

863901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95995 (or 95992 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 863901 is about 929.4627480432. The cubic root of 863901 is about 95.2404251851.

It can be divided in two parts, 863 and 901, that added together give a square (1764 = 42²).

The spelling of 863901 in words is "eight hundred sixty-three thousand, nine hundred one".