38824913 has 2 divisors, whose sum is σ = 38824914. Its totient is φ = 38824912.

The previous prime is 38824883. The next prime is 38824949. The reversal of 38824913 is 31942883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20948929 + 17875984 = 4577^2 + 4228^2 .

It is a cyclic number.

It is not a de Polignac number, because 38824913 - 2²⁰ = 37776337 is a prime.

It is not a weakly prime, because it can be changed into another prime (38824213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19412456 + 19412457.

It is an arithmetic number, because the mean of its divisors is an integer number (19412457).

Almost surely, 2^38824913 is an apocalyptic number.

It is an amenable number.

38824913 is a deficient number, since it is larger than the sum of its proper divisors (1).

38824913 is an equidigital number, since it uses as much as digits as its factorization.

38824913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 38824913 is about 6230.9640506105. The cubic root of 38824913 is about 338.6128983182.

The spelling of 38824913 in words is "thirty-eight million, eight hundred twenty-four thousand, nine hundred thirteen".