38936789 has 2 divisors, whose sum is σ = 38936790. Its totient is φ = 38936788.

The previous prime is 38936773. The next prime is 38936881. The reversal of 38936789 is 98763983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27478564 + 11458225 = 5242^2 + 3385^2 .

It is a cyclic number.

It is not a de Polignac number, because 38936789 - 2⁴ = 38936773 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38936789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38936089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19468394 + 19468395.

It is an arithmetic number, because the mean of its divisors is an integer number (19468395).

Almost surely, 2^38936789 is an apocalyptic number.

It is an amenable number.

38936789 is a deficient number, since it is larger than the sum of its proper divisors (1).

38936789 is an equidigital number, since it uses as much as digits as its factorization.

38936789 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 38936789 is about 6239.9350156873. The cubic root of 38936789 is about 338.9378299569.

The spelling of 38936789 in words is "thirty-eight million, nine hundred thirty-six thousand, seven hundred eighty-nine".