38865223 has 2 divisors, whose sum is σ = 38865224. Its totient is φ = 38865222.

The previous prime is 38865221. The next prime is 38865251. The reversal of 38865223 is 32256883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38865223 - 2¹ = 38865221 is a prime.

Together with 38865221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38865221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19432611 + 19432612.

It is an arithmetic number, because the mean of its divisors is an integer number (19432612).

Almost surely, 2^38865223 is an apocalyptic number.

38865223 is a deficient number, since it is larger than the sum of its proper divisors (1).

38865223 is an equidigital number, since it uses as much as digits as its factorization.

38865223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The square root of 38865223 is about 6234.1978633983. The cubic root of 38865223 is about 338.7300461642.

The spelling of 38865223 in words is "thirty-eight million, eight hundred sixty-five thousand, two hundred twenty-three".