431749625 has 8 divisors (see below), whose sum is σ = 538823688. Its totient is φ = 345399600.

The previous prime is 431749621. The next prime is 431749657. The reversal of 431749625 is 526947134.

It can be written as a sum of positive squares in 4 ways, for example, as 8048569 + 423701056 = 2837^2 + 20584^2 .

It is not a de Polignac number, because 431749625 - 2² = 431749621 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431749621) 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, 1726874 + ... + 1727123.

It is an arithmetic number, because the mean of its divisors is an integer number (67352961).

Almost surely, 2^431749625 is an apocalyptic number.

It is an amenable number.

431749625 is a deficient number, since it is larger than the sum of its proper divisors (107074063).

431749625 is an equidigital number, since it uses as much as digits as its factorization.

431749625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454012 (or 3454002 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 431749625 is about 20778.5857314688. The cubic root of 431749625 is about 755.8065587818.

The spelling of 431749625 in words is "four hundred thirty-one million, seven hundred forty-nine thousand, six hundred twenty-five".