38664313 has 2 divisors, whose sum is σ = 38664314. Its totient is φ = 38664312.

The previous prime is 38664287. The next prime is 38664317. The reversal of 38664313 is 31346683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35141184 + 3523129 = 5928^2 + 1877^2 .

It is a cyclic number.

It is not a de Polignac number, because 38664313 - 2⁵ = 38664281 is a prime.

It is not a weakly prime, because it can be changed into another prime (38664317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19332156 + 19332157.

It is an arithmetic number, because the mean of its divisors is an integer number (19332157).

Almost surely, 2^38664313 is an apocalyptic number.

It is an amenable number.

38664313 is a deficient number, since it is larger than the sum of its proper divisors (1).

38664313 is an equidigital number, since it uses as much as digits as its factorization.

38664313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 34.

The square root of 38664313 is about 6218.0634445139. The cubic root of 38664313 is about 338.1453601401.

The spelling of 38664313 in words is "thirty-eight million, six hundred sixty-four thousand, three hundred thirteen".