38998633 has 2 divisors, whose sum is σ = 38998634. Its totient is φ = 38998632.

The previous prime is 38998607. The next prime is 38998637. The reversal of 38998633 is 33689983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37982569 + 1016064 = 6163^2 + 1008^2 .

It is a cyclic number.

It is not a de Polignac number, because 38998633 - 2⁵ = 38998601 is a prime.

It is not a weakly prime, because it can be changed into another prime (38998637) 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, 19499316 + 19499317.

It is an arithmetic number, because the mean of its divisors is an integer number (19499317).

Almost surely, 2^38998633 is an apocalyptic number.

It is an amenable number.

38998633 is a deficient number, since it is larger than the sum of its proper divisors (1).

38998633 is an equidigital number, since it uses as much as digits as its factorization.

38998633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 49.

The square root of 38998633 is about 6244.8885498462. Note that the first 3 decimals coincide. The cubic root of 38998633 is about 339.1171820448.

The spelling of 38998633 in words is "thirty-eight million, nine hundred ninety-eight thousand, six hundred thirty-three".