39668201 has 4 divisors (see below), whose sum is σ = 41036100. Its totient is φ = 38300304.

The previous prime is 39668179. The next prime is 39668203. The reversal of 39668201 is 10286693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10286693 = 71 ⋅144883.

It can be written as a sum of positive squares in 2 ways, for example, as 28344976 + 11323225 = 5324^2 + 3365^2 .

It is a cyclic number.

It is not a de Polignac number, because 39668201 - 2⁶ = 39668137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39668203) 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, 683906 + ... + 683963.

It is an arithmetic number, because the mean of its divisors is an integer number (10259025).

Almost surely, 2^39668201 is an apocalyptic number.

It is an amenable number.

39668201 is a deficient number, since it is larger than the sum of its proper divisors (1367899).

39668201 is a wasteful number, since it uses less digits than its factorization.

39668201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367898.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 39668201 is about 6298.2696830161. The cubic root of 39668201 is about 341.0469487564.

It can be divided in two parts, 3966 and 8201, that added together give a cube (12167 = 23³).

The spelling of 39668201 in words is "thirty-nine million, six hundred sixty-eight thousand, two hundred one".