38893999 has 2 divisors, whose sum is σ = 38894000. Its totient is φ = 38893998.

The previous prime is 38893951. The next prime is 38894021. The reversal of 38893999 is 99939883.

It is a strong prime.

It is an emirp because it is prime and its reverse (99939883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38893999 - 2¹³ = 38885807 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38833999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19446999 + 19447000.

It is an arithmetic number, because the mean of its divisors is an integer number (19447000).

Almost surely, 2^38893999 is an apocalyptic number.

38893999 is a deficient number, since it is larger than the sum of its proper divisors (1).

38893999 is an equidigital number, since it uses as much as digits as its factorization.

38893999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3779136, while the sum is 58.

The square root of 38893999 is about 6236.5053515571. The cubic root of 38893999 is about 338.8136246645.

The spelling of 38893999 in words is "thirty-eight million, eight hundred ninety-three thousand, nine hundred ninety-nine".