39849023 has 4 divisors (see below), whose sum is σ = 41946360. Its totient is φ = 37751688.

The previous prime is 39849001. The next prime is 39849031. The reversal of 39849023 is 32094893.

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

It is a cyclic number.

It is not a de Polignac number, because 39849023 - 2⁶ = 39848959 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 (39849083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048640 + ... + 1048677.

It is an arithmetic number, because the mean of its divisors is an integer number (10486590).

Almost surely, 2^39849023 is an apocalyptic number.

39849023 is a deficient number, since it is larger than the sum of its proper divisors (2097337).

39849023 is a wasteful number, since it uses less digits than its factorization.

39849023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097336.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 39849023 is about 6312.6082564975. The cubic root of 39849023 is about 341.5643684486.

The spelling of 39849023 in words is "thirty-nine million, eight hundred forty-nine thousand, twenty-three".