39123993 has 4 divisors (see below), whose sum is σ = 52165328. Its totient is φ = 26082660.

The previous prime is 39123977. The next prime is 39124009. The reversal of 39123993 is 39932193.

39123993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (39123977) and next prime (39124009).

It is not a de Polignac number, because 39123993 - 2⁴ = 39123977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39123923) 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 3 ways as a sum of consecutive naturals, for example, 6520663 + ... + 6520668.

It is an arithmetic number, because the mean of its divisors is an integer number (13041332).

Almost surely, 2^39123993 is an apocalyptic number.

It is an amenable number.

39123993 is a deficient number, since it is larger than the sum of its proper divisors (13041335).

39123993 is a wasteful number, since it uses less digits than its factorization.

39123993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13041334.

The product of its digits is 39366, while the sum is 39.

The square root of 39123993 is about 6254.9175054512. The cubic root of 39123993 is about 339.4801542563.

The spelling of 39123993 in words is "thirty-nine million, one hundred twenty-three thousand, nine hundred ninety-three".