39985833 has 4 divisors (see below), whose sum is σ = 53314448. Its totient is φ = 26657220.

The previous prime is 39985787. The next prime is 39985837. The reversal of 39985833 is 33858993.

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 not a de Polignac number, because 39985833 - 2⁶ = 39985769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39985837) 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, 6664303 + ... + 6664308.

It is an arithmetic number, because the mean of its divisors is an integer number (13328612).

Almost surely, 2^39985833 is an apocalyptic number.

It is an amenable number.

39985833 is a deficient number, since it is larger than the sum of its proper divisors (13328615).

39985833 is a wasteful number, since it uses less digits than its factorization.

39985833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13328614.

The product of its digits is 699840, while the sum is 48.

The square root of 39985833 is about 6323.4352214599. The cubic root of 39985833 is about 341.9548091857.

The spelling of 39985833 in words is "thirty-nine million, nine hundred eighty-five thousand, eight hundred thirty-three".