863125641 has 27 divisors (see below), whose sum is σ = 1451323341. Its totient is φ = 492862104.

The previous prime is 863125621. The next prime is 863125651. The reversal of 863125641 is 146521368.

It is a happy number.

The square root of 863125641 is 29379.

It is a perfect power (a square), and thus also a powerful number.

863125641 is a `hidden beast` number, since 8 + 6 + 3 + 1 + 2 + 5 + 641 = 666.

It is not a de Polignac number, because 863125641 - 2⁵ = 863125609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 863125596 and 863125605.

It is not an unprimeable number, because it can be changed into a prime (863125621) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 616260 + ... + 617658.

Almost surely, 2^863125641 is an apocalyptic number.

863125641 is the 29379-th square number.

863125641 is the 14690-th centered octagonal number.

It is an amenable number.

863125641 is a deficient number, since it is larger than the sum of its proper divisors (588197700).

863125641 is an equidigital number, since it uses as much as digits as its factorization.

863125641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818 (or 1409 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The cubic root of 863125641 is about 952.1192360745.

Multiplying 863125641 by its sum of digits (36), we get a square (31072523076 = 176274²).

The spelling of 863125641 in words is "eight hundred sixty-three million, one hundred twenty-five thousand, six hundred forty-one".