39982873 has 6 divisors (see below), whose sum is σ = 46510746. Its totient is φ = 34270992.

The previous prime is 39982841. The next prime is 39982883. The reversal of 39982873 is 37828993.

It can be written as a sum of positive squares in only one way, i.e., 21086464 + 18896409 = 4592^2 + 4347^2 .

It is not a de Polignac number, because 39982873 - 2⁵ = 39982841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 815977 = 39982873 / (3 + 9 + 9 + 8 + 2 + 8 + 7 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39982823) 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 5 ways as a sum of consecutive naturals, for example, 407940 + ... + 408037.

It is an arithmetic number, because the mean of its divisors is an integer number (7751791).

Almost surely, 2^39982873 is an apocalyptic number.

It is an amenable number.

39982873 is a deficient number, since it is larger than the sum of its proper divisors (6527873).

39982873 is an equidigital number, since it uses as much as digits as its factorization.

39982873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815991 (or 815984 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The square root of 39982873 is about 6323.2011671305. The cubic root of 39982873 is about 341.9463711037.

The spelling of 39982873 in words is "thirty-nine million, nine hundred eighty-two thousand, eight hundred seventy-three".