39988133 has 2 divisors, whose sum is σ = 39988134. Its totient is φ = 39988132.

The previous prime is 39988127. The next prime is 39988139. The reversal of 39988133 is 33188993.

It is a balanced prime because it is at equal distance from previous prime (39988127) and next prime (39988139).

It can be written as a sum of positive squares in only one way, i.e., 39967684 + 20449 = 6322^2 + 143^2 .

It is an emirp because it is prime and its reverse (33188993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39988133 - 2⁸ = 39987877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39988139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19994066 + 19994067.

It is an arithmetic number, because the mean of its divisors is an integer number (19994067).

Almost surely, 2^39988133 is an apocalyptic number.

It is an amenable number.

39988133 is a deficient number, since it is larger than the sum of its proper divisors (1).

39988133 is an equidigital number, since it uses as much as digits as its factorization.

39988133 is an evil number, because the sum of its binary digits is even.

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

The square root of 39988133 is about 6323.6170820188. The cubic root of 39988133 is about 341.9613655160.

The spelling of 39988133 in words is "thirty-nine million, nine hundred eighty-eight thousand, one hundred thirty-three".