38495921 has 2 divisors, whose sum is σ = 38495922. Its totient is φ = 38495920.

The previous prime is 38495917. The next prime is 38495959. The reversal of 38495921 is 12959483.

38495921 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., 25391521 + 13104400 = 5039^2 + 3620^2 .

It is an emirp because it is prime and its reverse (12959483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38495921 - 2² = 38495917 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38494921) 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, 19247960 + 19247961.

It is an arithmetic number, because the mean of its divisors is an integer number (19247961).

Almost surely, 2^38495921 is an apocalyptic number.

It is an amenable number.

38495921 is a deficient number, since it is larger than the sum of its proper divisors (1).

38495921 is an equidigital number, since it uses as much as digits as its factorization.

38495921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The square root of 38495921 is about 6204.5081191018. The cubic root of 38495921 is about 337.6537454068.

The spelling of 38495921 in words is "thirty-eight million, four hundred ninety-five thousand, nine hundred twenty-one".