3625945 has 4 divisors (see below), whose sum is σ = 4351140. Its totient is φ = 2900752.

The previous prime is 3625943. The next prime is 3625961. The reversal of 3625945 is 5495263.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1354896 + 2271049 = 1164^2 + 1507^2 .

It is a cyclic number.

It is not a de Polignac number, because 3625945 - 2¹ = 3625943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3625945.

It is not an unprimeable number, because it can be changed into a prime (3625943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362590 + ... + 362599.

It is an arithmetic number, because the mean of its divisors is an integer number (1087785).

Almost surely, 2^3625945 is an apocalyptic number.

It is an amenable number.

3625945 is a deficient number, since it is larger than the sum of its proper divisors (725195).

3625945 is an equidigital number, since it uses as much as digits as its factorization.

3625945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725194.

The product of its digits is 32400, while the sum is 34.

The square root of 3625945 is about 1904.1914294524. The cubic root of 3625945 is about 153.6291888114.

The spelling of 3625945 in words is "three million, six hundred twenty-five thousand, nine hundred forty-five".