38299889 has 4 divisors (see below), whose sum is σ = 38343024. Its totient is φ = 38256756.

The previous prime is 38299871. The next prime is 38299903. The reversal of 38299889 is 98899283.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98899283 = 7 ⋅14128469.

It is a cyclic number.

It is not a de Polignac number, because 38299889 - 2²⁴ = 21522673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38292889) 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, 20207 + ... + 22020.

It is an arithmetic number, because the mean of its divisors is an integer number (9585756).

Almost surely, 2^38299889 is an apocalyptic number.

It is an amenable number.

38299889 is a deficient number, since it is larger than the sum of its proper divisors (43135).

38299889 is an equidigital number, since it uses as much as digits as its factorization.

38299889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43134.

The product of its digits is 2239488, while the sum is 56.

The square root of 38299889 is about 6188.6904107412. The cubic root of 38299889 is about 337.0796273315.

The spelling of 38299889 in words is "thirty-eight million, two hundred ninety-nine thousand, eight hundred eighty-nine".