38320769 has 2 divisors, whose sum is σ = 38320770. Its totient is φ = 38320768.

The previous prime is 38320757. The next prime is 38320781. The reversal of 38320769 is 96702383.

It is a balanced prime because it is at equal distance from previous prime (38320757) and next prime (38320781).

It can be written as a sum of positive squares in only one way, i.e., 27952369 + 10368400 = 5287^2 + 3220^2 .

It is an emirp because it is prime and its reverse (96702383) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38320769 is a prime.

It is a super-2 number, since 2×38320769² = 2936962673502722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38320069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19160384 + 19160385.

It is an arithmetic number, because the mean of its divisors is an integer number (19160385).

Almost surely, 2^38320769 is an apocalyptic number.

It is an amenable number.

38320769 is a deficient number, since it is larger than the sum of its proper divisors (1).

38320769 is an equidigital number, since it uses as much as digits as its factorization.

38320769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 38320769 is about 6190.3771290609. The cubic root of 38320769 is about 337.1408715821.

The spelling of 38320769 in words is "thirty-eight million, three hundred twenty thousand, seven hundred sixty-nine".