38784761 has 2 divisors, whose sum is σ = 38784762. Its totient is φ = 38784760.

The previous prime is 38784749. The next prime is 38784763. The reversal of 38784761 is 16748783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27762361 + 11022400 = 5269^2 + 3320^2 .

It is a cyclic number.

It is not a de Polignac number, because 38784761 - 2¹⁴ = 38768377 is a prime.

Together with 38784763, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38784763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19392380 + 19392381.

It is an arithmetic number, because the mean of its divisors is an integer number (19392381).

Almost surely, 2^38784761 is an apocalyptic number.

It is an amenable number.

38784761 is a deficient number, since it is larger than the sum of its proper divisors (1).

38784761 is an equidigital number, since it uses as much as digits as its factorization.

38784761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 44.

The square root of 38784761 is about 6227.7412438219. The cubic root of 38784761 is about 338.4961290100.

The spelling of 38784761 in words is "thirty-eight million, seven hundred eighty-four thousand, seven hundred sixty-one".