38276921 has 2 divisors, whose sum is σ = 38276922. Its totient is φ = 38276920.

The previous prime is 38276857. The next prime is 38276929. The reversal of 38276921 is 12967283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32205625 + 6071296 = 5675^2 + 2464^2 .

It is a cyclic number.

It is not a de Polignac number, because 38276921 - 2⁶ = 38276857 is a prime.

It is a super-3 number, since 3×38276921³ (a number of 24 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (38276929) 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, 19138460 + 19138461.

It is an arithmetic number, because the mean of its divisors is an integer number (19138461).

Almost surely, 2^38276921 is an apocalyptic number.

It is an amenable number.

38276921 is a deficient number, since it is larger than the sum of its proper divisors (1).

38276921 is an equidigital number, since it uses as much as digits as its factorization.

38276921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 38276921 is about 6186.8344894623. The cubic root of 38276921 is about 337.0122329412.

The spelling of 38276921 in words is "thirty-eight million, two hundred seventy-six thousand, nine hundred twenty-one".