39749093 has 2 divisors, whose sum is σ = 39749094. Its totient is φ = 39749092.

The previous prime is 39749057. The next prime is 39749117. The reversal of 39749093 is 39094793.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37724164 + 2024929 = 6142^2 + 1423^2 .

It is an emirp because it is prime and its reverse (39094793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39749093 - 2⁶ = 39749029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39749293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19874546 + 19874547.

It is an arithmetic number, because the mean of its divisors is an integer number (19874547).

Almost surely, 2^39749093 is an apocalyptic number.

It is an amenable number.

39749093 is a deficient number, since it is larger than the sum of its proper divisors (1).

39749093 is an equidigital number, since it uses as much as digits as its factorization.

39749093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 39749093 is about 6304.6881762701. The cubic root of 39749093 is about 341.2786140676.

The spelling of 39749093 in words is "thirty-nine million, seven hundred forty-nine thousand, ninety-three".