38710213 has 2 divisors, whose sum is σ = 38710214. Its totient is φ = 38710212.

The previous prime is 38710171. The next prime is 38710223. The reversal of 38710213 is 31201783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37724164 + 986049 = 6142^2 + 993^2 .

It is a cyclic number.

It is not a de Polignac number, because 38710213 - 2²¹ = 36613061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38710223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19355106 + 19355107.

It is an arithmetic number, because the mean of its divisors is an integer number (19355107).

Almost surely, 2^38710213 is an apocalyptic number.

It is an amenable number.

38710213 is a deficient number, since it is larger than the sum of its proper divisors (1).

38710213 is an equidigital number, since it uses as much as digits as its factorization.

38710213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 38710213 is about 6221.7532095061. The cubic root of 38710213 is about 338.2791159910.

Adding to 38710213 its reverse (31201783), we get a palindrome (69911996).

The spelling of 38710213 in words is "thirty-eight million, seven hundred ten thousand, two hundred thirteen".