3664825 has 12 divisors (see below), whose sum is σ = 4642560. Its totient is φ = 2868560.

The previous prime is 3664823. The next prime is 3664831. The reversal of 3664825 is 5284663.

It is a happy number.

It is not a de Polignac number, because 3664825 - 2¹ = 3664823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3664823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385 + ... + 2734.

It is an arithmetic number, because the mean of its divisors is an integer number (386880).

Almost surely, 2^3664825 is an apocalyptic number.

It is an amenable number.

3664825 is a deficient number, since it is larger than the sum of its proper divisors (977735).

3664825 is a wasteful number, since it uses less digits than its factorization.

3664825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176 (or 3171 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 3664825 is about 1914.3732655885. The cubic root of 3664825 is about 154.1763454681.

It can be divided in two parts, 3664 and 825, that added together give a square (4489 = 67²).

The spelling of 3664825 in words is "three million, six hundred sixty-four thousand, eight hundred twenty-five".