38090321 has 2 divisors, whose sum is σ = 38090322. Its totient is φ = 38090320.

The previous prime is 38090317. The next prime is 38090357. The reversal of 38090321 is 12309083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30030400 + 8059921 = 5480^2 + 2839^2 .

It is an emirp because it is prime and its reverse (12309083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38090321 - 2² = 38090317 is a prime.

It is a Chen prime.

It is equal to p_2324195 and since 38090321 and 2324195 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (38096321) 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, 19045160 + 19045161.

It is an arithmetic number, because the mean of its divisors is an integer number (19045161).

Almost surely, 2^38090321 is an apocalyptic number.

It is an amenable number.

38090321 is a deficient number, since it is larger than the sum of its proper divisors (1).

38090321 is an equidigital number, since it uses as much as digits as its factorization.

38090321 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 38090321 is about 6171.7356553890. The cubic root of 38090321 is about 336.4636956919.

The spelling of 38090321 in words is "thirty-eight million, ninety thousand, three hundred twenty-one".