39368789 has 2 divisors, whose sum is σ = 39368790. Its totient is φ = 39368788.

The previous prime is 39368783. The next prime is 39368807. The reversal of 39368789 is 98786393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29789764 + 9579025 = 5458^2 + 3095^2 .

It is a cyclic number.

It is not a de Polignac number, because 39368789 - 2⁸ = 39368533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39368789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39368783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19684394 + 19684395.

It is an arithmetic number, because the mean of its divisors is an integer number (19684395).

Almost surely, 2^39368789 is an apocalyptic number.

It is an amenable number.

39368789 is a deficient number, since it is larger than the sum of its proper divisors (1).

39368789 is an equidigital number, since it uses as much as digits as its factorization.

39368789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The square root of 39368789 is about 6274.4552751613. The cubic root of 39368789 is about 340.1867169349.

The spelling of 39368789 in words is "thirty-nine million, three hundred sixty-eight thousand, seven hundred eighty-nine".