38314921 has 4 divisors (see below), whose sum is σ = 38800000. Its totient is φ = 37829844.

The previous prime is 38314907. The next prime is 38314931. The reversal of 38314921 is 12941383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38314921 - 2²³ = 29926313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38314901) 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 in 3 ways as a sum of consecutive naturals, for example, 242421 + ... + 242578.

It is an arithmetic number, because the mean of its divisors is an integer number (9700000).

Almost surely, 2^38314921 is an apocalyptic number.

It is an amenable number.

38314921 is a deficient number, since it is larger than the sum of its proper divisors (485079).

38314921 is an equidigital number, since it uses as much as digits as its factorization.

38314921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485078.

The product of its digits is 5184, while the sum is 31.

The square root of 38314921 is about 6189.9047650186. The cubic root of 38314921 is about 337.1237207422.

The spelling of 38314921 in words is "thirty-eight million, three hundred fourteen thousand, nine hundred twenty-one".