3387645 has 24 divisors (see below), whose sum is σ = 5949216. Its totient is φ = 1783008.

The previous prime is 3387613. The next prime is 3387653. The reversal of 3387645 is 5467833.

It is a happy number.

3387645 is a `hidden beast` number, since 3 + 3 + 8 + 7 + 645 = 666.

It is not a de Polignac number, because 3387645 - 2⁵ = 3387613 is a prime.

It is a super-2 number, since 2×3387645² = 22952277292050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3282 + ... + 4188.

It is an arithmetic number, because the mean of its divisors is an integer number (247884).

Almost surely, 2^3387645 is an apocalyptic number.

It is an amenable number.

3387645 is a deficient number, since it is larger than the sum of its proper divisors (2561571).

3387645 is a wasteful number, since it uses less digits than its factorization.

3387645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001 (or 998 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 3387645 is about 1840.5556226314. Note that the first 3 decimals coincide. The cubic root of 3387645 is about 150.1870998606.

It can be divided in two parts, 33 and 87645, that added together give a palindrome (87678).

The spelling of 3387645 in words is "three million, three hundred eighty-seven thousand, six hundred forty-five".