39668099 has 2 divisors, whose sum is σ = 39668100. Its totient is φ = 39668098.

The previous prime is 39668093. The next prime is 39668113. The reversal of 39668099 is 99086693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39668099 - 2²⁴ = 22890883 is a prime.

It is not a weakly prime, because it can be changed into another prime (39668093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19834049 + 19834050.

It is an arithmetic number, because the mean of its divisors is an integer number (19834050).

Almost surely, 2^39668099 is an apocalyptic number.

39668099 is a deficient number, since it is larger than the sum of its proper divisors (1).

39668099 is an equidigital number, since it uses as much as digits as its factorization.

39668099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 39668099 is about 6298.2615855488. The cubic root of 39668099 is about 341.0466564415.

The spelling of 39668099 in words is "thirty-nine million, six hundred sixty-eight thousand, ninety-nine".