38879747 has 2 divisors, whose sum is σ = 38879748. Its totient is φ = 38879746.

The previous prime is 38879741. The next prime is 38879779. The reversal of 38879747 is 74797883.

It is a weak prime.

It is an emirp because it is prime and its reverse (74797883) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38879747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38879741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19439873 + 19439874.

It is an arithmetic number, because the mean of its divisors is an integer number (19439874).

Almost surely, 2^38879747 is an apocalyptic number.

38879747 is a deficient number, since it is larger than the sum of its proper divisors (1).

38879747 is an equidigital number, since it uses as much as digits as its factorization.

38879747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2370816, while the sum is 53.

The square root of 38879747 is about 6235.3626197680. The cubic root of 38879747 is about 338.7722355742.

The spelling of 38879747 in words is "thirty-eight million, eight hundred seventy-nine thousand, seven hundred forty-seven".