38689843 has 4 divisors (see below), whose sum is σ = 38927368. Its totient is φ = 38452320.

The previous prime is 38689837. The next prime is 38689853. The reversal of 38689843 is 34898683.

38689843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38689843 - 2⁵ = 38689811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38689823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118518 + ... + 118843.

It is an arithmetic number, because the mean of its divisors is an integer number (9731842).

Almost surely, 2^38689843 is an apocalyptic number.

38689843 is a deficient number, since it is larger than the sum of its proper divisors (237525).

38689843 is a wasteful number, since it uses less digits than its factorization.

38689843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237524.

The product of its digits is 995328, while the sum is 49.

The square root of 38689843 is about 6220.1159957030. The cubic root of 38689843 is about 338.2197694251.

The spelling of 38689843 in words is "thirty-eight million, six hundred eighty-nine thousand, eight hundred forty-three".