3646372 has 6 divisors (see below), whose sum is σ = 6381158. Its totient is φ = 1823184.

The previous prime is 3646369. The next prime is 3646393. The reversal of 3646372 is 2736463.

It can be written as a sum of positive squares in only one way, i.e., 2143296 + 1503076 = 1464^2 + 1226^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455793 + ... + 455800.

Almost surely, 2^3646372 is an apocalyptic number.

It is an amenable number.

3646372 is a deficient number, since it is larger than the sum of its proper divisors (2734786).

3646372 is a wasteful number, since it uses less digits than its factorization.

3646372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911597 (or 911595 counting only the distinct ones).

The product of its digits is 18144, while the sum is 31.

The square root of 3646372 is about 1909.5475903994. The cubic root of 3646372 is about 153.9171421367.

Subtracting from 3646372 its reverse (2736463), we obtain a palindrome (909909).

The spelling of 3646372 in words is "three million, six hundred forty-six thousand, three hundred seventy-two".