39666104 has 16 divisors (see below), whose sum is σ = 75594120. Its totient is φ = 19507680.

The previous prime is 39666103. The next prime is 39666119. The reversal of 39666104 is 40166693.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39666103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40154 + ... + 41129.

Almost surely, 2^39666104 is an apocalyptic number.

It is an amenable number.

39666104 is a deficient number, since it is larger than the sum of its proper divisors (35928016).

39666104 is a wasteful number, since it uses less digits than its factorization.

39666104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81350 (or 81346 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 39666104 is about 6298.1032065218. The cubic root of 39666104 is about 341.0409390052.

The spelling of 39666104 in words is "thirty-nine million, six hundred sixty-six thousand, one hundred four".