38300921 has 2 divisors, whose sum is σ = 38300922. Its totient is φ = 38300920.

The previous prime is 38300887. The next prime is 38300923. The reversal of 38300921 is 12900383.

38300921 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., 22934521 + 15366400 = 4789^2 + 3920^2 .

It is a cyclic number.

It is not a de Polignac number, because 38300921 - 2²² = 34106617 is a prime.

It is a Sophie Germain prime.

Together with 38300923, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (38300923) 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, 19150460 + 19150461.

It is an arithmetic number, because the mean of its divisors is an integer number (19150461).

Almost surely, 2^38300921 is an apocalyptic number.

It is an amenable number.

38300921 is a deficient number, since it is larger than the sum of its proper divisors (1).

38300921 is an equidigital number, since it uses as much as digits as its factorization.

38300921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 38300921 is about 6188.7737880779. The cubic root of 38300921 is about 337.0826548690.

The spelling of 38300921 in words is "thirty-eight million, three hundred thousand, nine hundred twenty-one".