39799933 has 4 divisors (see below), whose sum is σ = 40165180. Its totient is φ = 39434688.

The previous prime is 39799871. The next prime is 39799951. The reversal of 39799933 is 33999793.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20457529 + 19342404 = 4523^2 + 4398^2 .

It is a cyclic number.

It is not a de Polignac number, because 39799933 - 2⁹ = 39799421 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 (39739933) 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, 182460 + ... + 182677.

It is an arithmetic number, because the mean of its divisors is an integer number (10041295).

Almost surely, 2^39799933 is an apocalyptic number.

It is an amenable number.

39799933 is a deficient number, since it is larger than the sum of its proper divisors (365247).

39799933 is a wasteful number, since it uses less digits than its factorization.

39799933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365246.

The product of its digits is 1240029, while the sum is 52.

The square root of 39799933 is about 6308.7188081258. The cubic root of 39799933 is about 341.4240531322.

The spelling of 39799933 in words is "thirty-nine million, seven hundred ninety-nine thousand, nine hundred thirty-three".