38715973 has 4 divisors (see below), whose sum is σ = 38753260. Its totient is φ = 38678688.

The previous prime is 38715961. The next prime is 38715983. The reversal of 38715973 is 37951783.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10647169 + 28068804 = 3263^2 + 5298^2 .

It is a cyclic number.

It is not a de Polignac number, because 38715973 - 2⁹ = 38715461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38715983) 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, 17040 + ... + 19177.

It is an arithmetic number, because the mean of its divisors is an integer number (9688315).

Almost surely, 2^38715973 is an apocalyptic number.

It is an amenable number.

38715973 is a deficient number, since it is larger than the sum of its proper divisors (37287).

38715973 is a wasteful number, since it uses less digits than its factorization.

38715973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37286.

The product of its digits is 158760, while the sum is 43.

The square root of 38715973 is about 6222.2160843224. The cubic root of 38715973 is about 338.2958935709.

The spelling of 38715973 in words is "thirty-eight million, seven hundred fifteen thousand, nine hundred seventy-three".