38642867 has 4 divisors (see below), whose sum is σ = 38668920. Its totient is φ = 38616816.

The previous prime is 38642861. The next prime is 38642893. The reversal of 38642867 is 76824683.

38642867 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 38642867 - 2⁶ = 38642803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38642861) 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, 10658 + ... + 13815.

It is an arithmetic number, because the mean of its divisors is an integer number (9667230).

Almost surely, 2^38642867 is an apocalyptic number.

38642867 is a deficient number, since it is larger than the sum of its proper divisors (26053).

38642867 is a wasteful number, since it uses less digits than its factorization.

38642867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26052.

The product of its digits is 387072, while the sum is 44.

The square root of 38642867 is about 6216.3387134229. The cubic root of 38642867 is about 338.0828286906.

The spelling of 38642867 in words is "thirty-eight million, six hundred forty-two thousand, eight hundred sixty-seven".