3649626 has 12 divisors (see below), whose sum is σ = 7907562. Its totient is φ = 1216536.

The previous prime is 3649609. The next prime is 3649637. The reversal of 3649626 is 6269463.

3649626 is a `hidden beast` number, since 3 + 649 + 6 + 2 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2099601 + 1550025 = 1449^2 + 1245^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101361 + ... + 101396.

Almost surely, 2^3649626 is an apocalyptic number.

3649626 is an abundant number, since it is smaller than the sum of its proper divisors (4257936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3649626 is a wasteful number, since it uses less digits than its factorization.

3649626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202765 (or 202762 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 3649626 is about 1910.3994346733. The cubic root of 3649626 is about 153.9629134285.

The spelling of 3649626 in words is "three million, six hundred forty-nine thousand, six hundred twenty-six".