3866607 has 12 divisors (see below), whose sum is σ = 5677464. Its totient is φ = 2535120.

The previous prime is 3866581. The next prime is 3866609. The reversal of 3866607 is 7066683.

It is a happy number.

It is not a de Polignac number, because 3866607 - 2⁶ = 3866543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2973 + ... + 4070.

It is an arithmetic number, because the mean of its divisors is an integer number (473122).

Almost surely, 2^3866607 is an apocalyptic number.

3866607 is a deficient number, since it is larger than the sum of its proper divisors (1810857).

3866607 is a wasteful number, since it uses less digits than its factorization.

3866607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7110 (or 7107 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 3866607 is about 1966.3689887709. The cubic root of 3866607 is about 156.9555501845.

The spelling of 3866607 in words is "three million, eight hundred sixty-six thousand, six hundred seven".