38924513 has 2 divisors, whose sum is σ = 38924514. Its totient is φ = 38924512.

The previous prime is 38924461. The next prime is 38924537. The reversal of 38924513 is 31542983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34668544 + 4255969 = 5888^2 + 2063^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38924513 is a prime.

It is not a weakly prime, because it can be changed into another prime (38924573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19462256 + 19462257.

It is an arithmetic number, because the mean of its divisors is an integer number (19462257).

Almost surely, 2^38924513 is an apocalyptic number.

It is an amenable number.

38924513 is a deficient number, since it is larger than the sum of its proper divisors (1).

38924513 is an equidigital number, since it uses as much as digits as its factorization.

38924513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 38924513 is about 6238.9512740524. The cubic root of 38924513 is about 338.9022060798.

The spelling of 38924513 in words is "thirty-eight million, nine hundred twenty-four thousand, five hundred thirteen".