38897429 has 2 divisors, whose sum is σ = 38897430. Its totient is φ = 38897428.

The previous prime is 38897407. The next prime is 38897459. The reversal of 38897429 is 92479883.

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., 38254225 + 643204 = 6185^2 + 802^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38897429 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38897459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19448714 + 19448715.

It is an arithmetic number, because the mean of its divisors is an integer number (19448715).

Almost surely, 2^38897429 is an apocalyptic number.

It is an amenable number.

38897429 is a deficient number, since it is larger than the sum of its proper divisors (1).

38897429 is an equidigital number, since it uses as much as digits as its factorization.

38897429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 50.

The square root of 38897429 is about 6236.7803392456. The cubic root of 38897429 is about 338.8235841835.

The spelling of 38897429 in words is "thirty-eight million, eight hundred ninety-seven thousand, four hundred twenty-nine".