38399983 has 2 divisors, whose sum is σ = 38399984. Its totient is φ = 38399982.

The previous prime is 38399981. The next prime is 38400023. The reversal of 38399983 is 38999383.

It is a weak prime.

It is an emirp because it is prime and its reverse (38999383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38399983 - 2¹ = 38399981 is a prime.

Together with 38399981, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 38399983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38399981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19199991 + 19199992.

It is an arithmetic number, because the mean of its divisors is an integer number (19199992).

Almost surely, 2^38399983 is an apocalyptic number.

38399983 is a deficient number, since it is larger than the sum of its proper divisors (1).

38399983 is an equidigital number, since it uses as much as digits as its factorization.

38399983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 52.

The square root of 38399983 is about 6196.7719822501. The cubic root of 38399983 is about 337.3730163347.

The spelling of 38399983 in words is "thirty-eight million, three hundred ninety-nine thousand, nine hundred eighty-three".