8625431 has 2 divisors, whose sum is σ = 8625432. Its totient is φ = 8625430.

The previous prime is 8625359. The next prime is 8625451. The reversal of 8625431 is 1345268.

8625431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8625431 - 2²² = 4431127 is a prime.

It is a super-2 number, since 2×8625431² = 148796119871522, which contains 22 as substring.

It is a Chen prime.

It is a d-powerful number, because it can be written as 8⁷ + 6⁸ + 2⁵ + 5³ + 4⁸ + 3¹⁴ + 1 .

It is a junction number, because it is equal to n+sod(n) for n = 8625394 and 8625403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8625451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4312715 + 4312716.

It is an arithmetic number, because the mean of its divisors is an integer number (4312716).

Almost surely, 2^8625431 is an apocalyptic number.

8625431 is a deficient number, since it is larger than the sum of its proper divisors (1).

8625431 is an equidigital number, since it uses as much as digits as its factorization.

8625431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 8625431 is about 2936.9084085140. The cubic root of 8625431 is about 205.0817124184.

The spelling of 8625431 in words is "eight million, six hundred twenty-five thousand, four hundred thirty-one".