38573917 has 2 divisors, whose sum is σ = 38573918. Its totient is φ = 38573916.

The previous prime is 38573897. The next prime is 38573957. The reversal of 38573917 is 71937583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25999801 + 12574116 = 5099^2 + 3546^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38573917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38573957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19286958 + 19286959.

It is an arithmetic number, because the mean of its divisors is an integer number (19286959).

Almost surely, 2^38573917 is an apocalyptic number.

It is an amenable number.

38573917 is a deficient number, since it is larger than the sum of its proper divisors (1).

38573917 is an equidigital number, since it uses as much as digits as its factorization.

38573917 is an evil number, because the sum of its binary digits is even.

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

The square root of 38573917 is about 6210.7903683831. The cubic root of 38573917 is about 337.8816299442.

The spelling of 38573917 in words is "thirty-eight million, five hundred seventy-three thousand, nine hundred seventeen".