38457217 has 2 divisors, whose sum is σ = 38457218. Its totient is φ = 38457216.

The previous prime is 38457163. The next prime is 38457229. The reversal of 38457217 is 71275483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36978561 + 1478656 = 6081^2 + 1216^2 .

It is a cyclic number.

It is not a de Polignac number, because 38457217 - 2¹¹ = 38455169 is a prime.

It is not a weakly prime, because it can be changed into another prime (38457257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19228608 + 19228609.

It is an arithmetic number, because the mean of its divisors is an integer number (19228609).

Almost surely, 2^38457217 is an apocalyptic number.

It is an amenable number.

38457217 is a deficient number, since it is larger than the sum of its proper divisors (1).

38457217 is an equidigital number, since it uses as much as digits as its factorization.

38457217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 38457217 is about 6201.3883123056. The cubic root of 38457217 is about 337.5405478489.

The spelling of 38457217 in words is "thirty-eight million, four hundred fifty-seven thousand, two hundred seventeen".