38856847 has 2 divisors, whose sum is σ = 38856848. Its totient is φ = 38856846.

The previous prime is 38856833. The next prime is 38856863. The reversal of 38856847 is 74865883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38856847 - 2²³ = 30468239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38856847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38856887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19428423 + 19428424.

It is an arithmetic number, because the mean of its divisors is an integer number (19428424).

Almost surely, 2^38856847 is an apocalyptic number.

38856847 is a deficient number, since it is larger than the sum of its proper divisors (1).

38856847 is an equidigital number, since it uses as much as digits as its factorization.

38856847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 49.

The square root of 38856847 is about 6233.5260487143. The cubic root of 38856847 is about 338.7057107259.

The spelling of 38856847 in words is "thirty-eight million, eight hundred fifty-six thousand, eight hundred forty-seven".