38699329 has 2 divisors, whose sum is σ = 38699330. Its totient is φ = 38699328.

The previous prime is 38699321. The next prime is 38699341. The reversal of 38699329 is 92399683.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19820304 + 18879025 = 4452^2 + 4345^2 .

It is an emirp because it is prime and its reverse (92399683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38699329 - 2³ = 38699321 is a prime.

It is not a weakly prime, because it can be changed into another prime (38699321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19349664 + 19349665.

It is an arithmetic number, because the mean of its divisors is an integer number (19349665).

Almost surely, 2^38699329 is an apocalyptic number.

It is an amenable number.

38699329 is a deficient number, since it is larger than the sum of its proper divisors (1).

38699329 is an equidigital number, since it uses as much as digits as its factorization.

38699329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 49.

The square root of 38699329 is about 6220.8784749423. The cubic root of 38699329 is about 338.2474088115.

The spelling of 38699329 in words is "thirty-eight million, six hundred ninety-nine thousand, three hundred twenty-nine".