38721873 has 16 divisors (see below), whose sum is σ = 53726400. Its totient is φ = 24776640.

The previous prime is 38721871. The next prime is 38721911. The reversal of 38721873 is 37812783.

38721873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38721873 - 2¹ = 38721871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38721871) 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 15 ways as a sum of consecutive naturals, for example, 14518 + ... + 16976.

It is an arithmetic number, because the mean of its divisors is an integer number (3357900).

Almost surely, 2^38721873 is an apocalyptic number.

It is an amenable number.

38721873 is a deficient number, since it is larger than the sum of its proper divisors (15004527).

38721873 is a wasteful number, since it uses less digits than its factorization.

38721873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672.

The product of its digits is 56448, while the sum is 39.

The square root of 38721873 is about 6222.6901738717. The cubic root of 38721873 is about 338.3130772141.

The spelling of 38721873 in words is "thirty-eight million, seven hundred twenty-one thousand, eight hundred seventy-three".