3966699 has 16 divisors (see below), whose sum is σ = 5854464. Its totient is φ = 2368800.

The previous prime is 3966691. The next prime is 3966701. The reversal of 3966699 is 9966693.

It is not a de Polignac number, because 3966699 - 2³ = 3966691 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966691) by changing a digit.

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, 1497 + ... + 3189.

It is an arithmetic number, because the mean of its divisors is an integer number (365904).

Almost surely, 2^3966699 is an apocalyptic number.

3966699 is a deficient number, since it is larger than the sum of its proper divisors (1887765).

3966699 is a wasteful number, since it uses less digits than its factorization.

3966699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778.

The product of its digits is 472392, while the sum is 48.

The square root of 3966699 is about 1991.6573500479. The cubic root of 3966699 is about 158.2983600194.

The spelling of 3966699 in words is "three million, nine hundred sixty-six thousand, six hundred ninety-nine".