38990533 has 2 divisors, whose sum is σ = 38990534. Its totient is φ = 38990532.

The previous prime is 38990531. The next prime is 38990593. The reversal of 38990533 is 33509983.

38990533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23990404 + 15000129 = 4898^2 + 3873^2 .

It is a cyclic number.

It is not a de Polignac number, because 38990533 - 2¹ = 38990531 is a prime.

Together with 38990531, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38990531) 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, 19495266 + 19495267.

It is an arithmetic number, because the mean of its divisors is an integer number (19495267).

Almost surely, 2^38990533 is an apocalyptic number.

It is an amenable number.

38990533 is a deficient number, since it is larger than the sum of its proper divisors (1).

38990533 is an equidigital number, since it uses as much as digits as its factorization.

38990533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 38990533 is about 6244.2399857789. The cubic root of 38990533 is about 339.0937022529.

The spelling of 38990533 in words is "thirty-eight million, nine hundred ninety thousand, five hundred thirty-three".