38749637 has 2 divisors, whose sum is σ = 38749638. Its totient is φ = 38749636.

The previous prime is 38749553. The next prime is 38749643. The reversal of 38749637 is 73694783.

It is a happy number.

38749637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29008996 + 9740641 = 5386^2 + 3121^2 .

It is a cyclic number.

It is not a de Polignac number, because 38749637 - 2²⁴ = 21972421 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 38749591 and 38749600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38749237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19374818 + 19374819.

It is an arithmetic number, because the mean of its divisors is an integer number (19374819).

Almost surely, 2^38749637 is an apocalyptic number.

It is an amenable number.

38749637 is a deficient number, since it is larger than the sum of its proper divisors (1).

38749637 is an equidigital number, since it uses as much as digits as its factorization.

38749637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 47.

The square root of 38749637 is about 6224.9206420644. The cubic root of 38749637 is about 338.3939159365.

The spelling of 38749637 in words is "thirty-eight million, seven hundred forty-nine thousand, six hundred thirty-seven".