431625 has 16 divisors (see below), whose sum is σ = 718848. Its totient is φ = 230000.

The previous prime is 431621. The next prime is 431657. The reversal of 431625 is 526134.

It is a happy number.

It is not a de Polignac number, because 431625 - 2² = 431621 is a prime.

It is a Curzon number.

431625 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 431625.

It is not an unprimeable number, because it can be changed into a prime (431621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201 + ... + 950.

It is an arithmetic number, because the mean of its divisors is an integer number (44928).

2⁴³¹⁶²⁵ is an apocalyptic number.

It is an amenable number.

431625 is a deficient number, since it is larger than the sum of its proper divisors (287223).

431625 is a wasteful number, since it uses less digits than its factorization.

431625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169 (or 1159 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 431625 is about 656.9817349059. The cubic root of 431625 is about 75.5733830321.

Adding to 431625 its reverse (526134), we get a palindrome (957759).

The spelling of 431625 in words is "four hundred thirty-one thousand, six hundred twenty-five".