39499023 has 4 divisors (see below), whose sum is σ = 52665368. Its totient is φ = 26332680.

The previous prime is 39499021. The next prime is 39499039. The reversal of 39499023 is 32099493.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 39499023 - 2¹ = 39499021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39499021) 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, 6583168 + ... + 6583173.

It is an arithmetic number, because the mean of its divisors is an integer number (13166342).

Almost surely, 2^39499023 is an apocalyptic number.

39499023 is a deficient number, since it is larger than the sum of its proper divisors (13166345).

39499023 is a wasteful number, since it uses less digits than its factorization.

39499023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13166344.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 39499023 is about 6284.8248185610. The cubic root of 39499023 is about 340.5614225026.

The spelling of 39499023 in words is "thirty-nine million, four hundred ninety-nine thousand, twenty-three".