3660625 has 10 divisors (see below), whose sum is σ = 4575098. Its totient is φ = 2928000.

The previous prime is 3660619. The next prime is 3660637. The reversal of 3660625 is 5260663.

It can be written as a sum of positive squares in 5 ways, for example, as 559504 + 3101121 = 748^2 + 1761^2 .

It is not a de Polignac number, because 3660625 - 2³ = 3660617 is a prime.

It is a Duffinian number.

3660625 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3660593 and 3660602.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2304 + ... + 3553.

Almost surely, 2^3660625 is an apocalyptic number.

It is an amenable number.

3660625 is a deficient number, since it is larger than the sum of its proper divisors (914473).

3660625 is an frugal number, since it uses more digits than its factorization.

3660625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5877 (or 5862 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 3660625 is about 1913.2759863647. The cubic root of 3660625 is about 154.1174260404.

The spelling of 3660625 in words is "three million, six hundred sixty thousand, six hundred twenty-five".