3756645 has 16 divisors (see below), whose sum is σ = 6678720. Its totient is φ = 2003472.

The previous prime is 3756637. The next prime is 3756667. The reversal of 3756645 is 5466573.

3756645 is a `hidden beast` number, since 3 + 7 + 5 + 6 + 645 = 666.

3756645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3756645 - 2³ = 3756637 is a prime.

It is a super-2 number, since 2×3756645² = 28224763312050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13779 + ... + 14048.

It is an arithmetic number, because the mean of its divisors is an integer number (417420).

Almost surely, 2^3756645 is an apocalyptic number.

It is an amenable number.

3756645 is a deficient number, since it is larger than the sum of its proper divisors (2922075).

3756645 is a wasteful number, since it uses less digits than its factorization.

3756645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27841 (or 27835 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 3756645 is about 1938.2066453296. The cubic root of 3756645 is about 155.4533380807.

The spelling of 3756645 in words is "three million, seven hundred fifty-six thousand, six hundred forty-five".