38538769 has 2 divisors, whose sum is σ = 38538770. Its totient is φ = 38538768.

The previous prime is 38538743. The next prime is 38538833. The reversal of 38538769 is 96783583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35521600 + 3017169 = 5960^2 + 1737^2 .

It is a cyclic number.

It is not a de Polignac number, because 38538769 - 2⁹ = 38538257 is a prime.

It is a super-2 number, since 2×38538769² = 2970473432070722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38538169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19269384 + 19269385.

It is an arithmetic number, because the mean of its divisors is an integer number (19269385).

Almost surely, 2^38538769 is an apocalyptic number.

It is an amenable number.

38538769 is a deficient number, since it is larger than the sum of its proper divisors (1).

38538769 is an equidigital number, since it uses as much as digits as its factorization.

38538769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 38538769 is about 6207.9601319596. The cubic root of 38538769 is about 337.7789744599.

The spelling of 38538769 in words is "thirty-eight million, five hundred thirty-eight thousand, seven hundred sixty-nine".