863863125 has 40 divisors (see below), whose sum is σ = 1450710624. Its totient is φ = 457080000.

The previous prime is 863863097. The next prime is 863863157. The reversal of 863863125 is 521368368.

It is not a de Polignac number, because 863863125 - 2⁶ = 863863061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 243867 + ... + 247383.

Almost surely, 2^863863125 is an apocalyptic number.

It is an amenable number.

863863125 is a deficient number, since it is larger than the sum of its proper divisors (586847499).

863863125 is a wasteful number, since it uses less digits than its factorization.

863863125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671 (or 3656 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 863863125 is about 29391.5485301472. The cubic root of 863863125 is about 952.3903332657.

The spelling of 863863125 in words is "eight hundred sixty-three million, eight hundred sixty-three thousand, one hundred twenty-five".