38423513 has 2 divisors, whose sum is σ = 38423514. Its totient is φ = 38423512.

The previous prime is 38423461. The next prime is 38423533. The reversal of 38423513 is 31532483.

38423513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35081929 + 3341584 = 5923^2 + 1828^2 .

It is a cyclic number.

It is not a de Polignac number, because 38423513 - 2⁶ = 38423449 is a prime.

It is a super-2 number, since 2×38423513² = 2952732702522338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38423533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19211756 + 19211757.

It is an arithmetic number, because the mean of its divisors is an integer number (19211757).

Almost surely, 2^38423513 is an apocalyptic number.

It is an amenable number.

38423513 is a deficient number, since it is larger than the sum of its proper divisors (1).

38423513 is an equidigital number, since it uses as much as digits as its factorization.

38423513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 38423513 is about 6198.6702606285. The cubic root of 38423513 is about 337.4419119050.

Adding to 38423513 its reverse (31532483), we get a palindrome (69955996).

The spelling of 38423513 in words is "thirty-eight million, four hundred twenty-three thousand, five hundred thirteen".