38638753 has 2 divisors, whose sum is σ = 38638754. Its totient is φ = 38638752.

The previous prime is 38638751. The next prime is 38638763. The reversal of 38638753 is 35783683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29680704 + 8958049 = 5448^2 + 2993^2 .

It is a cyclic number.

It is not a de Polignac number, because 38638753 - 2¹ = 38638751 is a prime.

Together with 38638751, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (38638751) 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, 19319376 + 19319377.

It is an arithmetic number, because the mean of its divisors is an integer number (19319377).

Almost surely, 2^38638753 is an apocalyptic number.

It is an amenable number.

38638753 is a deficient number, since it is larger than the sum of its proper divisors (1).

38638753 is an equidigital number, since it uses as much as digits as its factorization.

38638753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 38638753 is about 6216.0078024404. The cubic root of 38638753 is about 338.0708305978.

The spelling of 38638753 in words is "thirty-eight million, six hundred thirty-eight thousand, seven hundred fifty-three".