38899771 has 2 divisors, whose sum is σ = 38899772. Its totient is φ = 38899770.

The previous prime is 38899753. The next prime is 38899781. The reversal of 38899771 is 17799883.

It is a strong prime.

It is an emirp because it is prime and its reverse (17799883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38899771 - 2¹⁷ = 38768699 is a prime.

It is not a weakly prime, because it can be changed into another prime (38899781) 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, 19449885 + 19449886.

It is an arithmetic number, because the mean of its divisors is an integer number (19449886).

Almost surely, 2^38899771 is an apocalyptic number.

38899771 is a deficient number, since it is larger than the sum of its proper divisors (1).

38899771 is an equidigital number, since it uses as much as digits as its factorization.

38899771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 52.

The square root of 38899771 is about 6236.9680935531. The cubic root of 38899771 is about 338.8303841952.

The spelling of 38899771 in words is "thirty-eight million, eight hundred ninety-nine thousand, seven hundred seventy-one".