38662513 has 2 divisors, whose sum is σ = 38662514. Its totient is φ = 38662512.

The previous prime is 38662501. The next prime is 38662531. The reversal of 38662513 is 31526683.

Together with next prime (38662531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37847104 + 815409 = 6152^2 + 903^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38662513 is a prime.

It is a super-2 number, since 2×38662513² = 2989579822950338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38662543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19331256 + 19331257.

It is an arithmetic number, because the mean of its divisors is an integer number (19331257).

Almost surely, 2^38662513 is an apocalyptic number.

It is an amenable number.

38662513 is a deficient number, since it is larger than the sum of its proper divisors (1).

38662513 is an equidigital number, since it uses as much as digits as its factorization.

38662513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 38662513 is about 6217.9187032318. The cubic root of 38662513 is about 338.1401126561.

The spelling of 38662513 in words is "thirty-eight million, six hundred sixty-two thousand, five hundred thirteen".