3654625 has 24 divisors (see below), whose sum is σ = 4967352. Its totient is φ = 2683200.

The previous prime is 3654587. The next prime is 3654641. The reversal of 3654625 is 5264563.

It can be written as a sum of positive squares in 12 ways, for example, as 3041536 + 613089 = 1744^2 + 783^2 .

It is not a de Polignac number, because 3654625 - 2¹⁵ = 3621857 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21039 + ... + 21211.

It is an arithmetic number, because the mean of its divisors is an integer number (206973).

Almost surely, 2^3654625 is an apocalyptic number.

It is an amenable number.

3654625 is a deficient number, since it is larger than the sum of its proper divisors (1312727).

3654625 is a wasteful number, since it uses less digits than its factorization.

3654625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 191 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 3654625 is about 1911.7073520809. The cubic root of 3654625 is about 154.0331772000.

The spelling of 3654625 in words is "three million, six hundred fifty-four thousand, six hundred twenty-five".