8431625 has 8 divisors (see below), whose sum is σ = 10522824. Its totient is φ = 6745200.

The previous prime is 8431607. The next prime is 8431627. The reversal of 8431625 is 5261348.

It can be written as a sum of positive squares in 4 ways, for example, as 1893376 + 6538249 = 1376^2 + 2557^2 .

It is not a de Polignac number, because 8431625 - 2⁸ = 8431369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8431627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33602 + ... + 33851.

It is an arithmetic number, because the mean of its divisors is an integer number (1315353).

Almost surely, 2^8431625 is an apocalyptic number.

It is an amenable number.

8431625 is a deficient number, since it is larger than the sum of its proper divisors (2091199).

8431625 is an equidigital number, since it uses as much as digits as its factorization.

8431625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67468 (or 67458 counting only the distinct ones).

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

The square root of 8431625 is about 2903.7260545720. The cubic root of 8431625 is about 203.5340593002.

The spelling of 8431625 in words is "eight million, four hundred thirty-one thousand, six hundred twenty-five".