39813983 has 8 divisors (see below), whose sum is σ = 45988560. Its totient is φ = 34065280.

The previous prime is 39813979. The next prime is 39813997. The reversal of 39813983 is 38931893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39813983 - 2² = 39813979 is a prime.

It is a super-3 number, since 3×39813983³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39813953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106268 + ... + 106641.

It is an arithmetic number, because the mean of its divisors is an integer number (5748570).

Almost surely, 2^39813983 is an apocalyptic number.

39813983 is a deficient number, since it is larger than the sum of its proper divisors (6174577).

39813983 is a wasteful number, since it uses less digits than its factorization.

39813983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212937.

The product of its digits is 139968, while the sum is 44.

The square root of 39813983 is about 6309.8322481663. The cubic root of 39813983 is about 341.4642244191.

The spelling of 39813983 in words is "thirty-nine million, eight hundred thirteen thousand, nine hundred eighty-three".