3665974 has 32 divisors (see below), whose sum is σ = 6420960. Its totient is φ = 1555200.

The previous prime is 3665941. The next prime is 3665989. The reversal of 3665974 is 4795663.

It is a d-powerful number, because it can be written as 3³ + 6 + 6⁸ + 5⁹ + 9 + 7⁵ + 4⁷ .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20164 + ... + 20344.

It is an arithmetic number, because the mean of its divisors is an integer number (200655).

Almost surely, 2^3665974 is an apocalyptic number.

3665974 is a deficient number, since it is larger than the sum of its proper divisors (2754986).

3665974 is a wasteful number, since it uses less digits than its factorization.

3665974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256.

The product of its digits is 136080, while the sum is 40.

The square root of 3665974 is about 1914.6733402855. The cubic root of 3665974 is about 154.1924562975.

The spelling of 3665974 in words is "three million, six hundred sixty-five thousand, nine hundred seventy-four".