38784113 has 2 divisors, whose sum is σ = 38784114. Its totient is φ = 38784112.

The previous prime is 38784091. The next prime is 38784133. The reversal of 38784113 is 31148783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27541504 + 11242609 = 5248^2 + 3353^2 .

It is a cyclic number.

It is not a de Polignac number, because 38784113 - 2¹² = 38780017 is a prime.

It is not a weakly prime, because it can be changed into another prime (38784133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19392056 + 19392057.

It is an arithmetic number, because the mean of its divisors is an integer number (19392057).

Almost surely, 2^38784113 is an apocalyptic number.

It is an amenable number.

38784113 is a deficient number, since it is larger than the sum of its proper divisors (1).

38784113 is an equidigital number, since it uses as much as digits as its factorization.

38784113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 38784113 is about 6227.6892183217. The cubic root of 38784113 is about 338.4942438477.

The spelling of 38784113 in words is "thirty-eight million, seven hundred eighty-four thousand, one hundred thirteen".