3648650 has 12 divisors (see below), whose sum is σ = 6786582. Its totient is φ = 1459440.

The previous prime is 3648649. The next prime is 3648653. The reversal of 3648650 is 568463.

It can be written as a sum of positive squares in 3 ways, for example, as 2505889 + 1142761 = 1583^2 + 1069^2 .

It is not an unprimeable number, because it can be changed into a prime (3648653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36437 + ... + 36536.

Almost surely, 2^3648650 is an apocalyptic number.

3648650 is a deficient number, since it is larger than the sum of its proper divisors (3137932).

3648650 is a wasteful number, since it uses less digits than its factorization.

3648650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72985 (or 72980 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 3648650 is about 1910.1439736313. The cubic root of 3648650 is about 153.9491877115.

The spelling of 3648650 in words is "three million, six hundred forty-eight thousand, six hundred fifty".