38782785 has 16 divisors (see below), whose sum is σ = 62138880. Its totient is φ = 20655360.

The previous prime is 38782747. The next prime is 38782787. The reversal of 38782785 is 58728783.

38782785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38782785 - 2¹⁷ = 38651713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38782787) 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 in 15 ways as a sum of consecutive naturals, for example, 13561 + ... + 16169.

It is an arithmetic number, because the mean of its divisors is an integer number (3883680).

Almost surely, 2^38782785 is an apocalyptic number.

It is an amenable number.

38782785 is a deficient number, since it is larger than the sum of its proper divisors (23356095).

38782785 is a wasteful number, since it uses less digits than its factorization.

38782785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608.

The product of its digits is 752640, while the sum is 48.

The square root of 38782785 is about 6227.5825968027. The cubic root of 38782785 is about 338.4903803630.

The spelling of 38782785 in words is "thirty-eight million, seven hundred eighty-two thousand, seven hundred eighty-five".