38745985 has 4 divisors (see below), whose sum is σ = 46495188. Its totient is φ = 30996784.

The previous prime is 38745983. The next prime is 38745989. The reversal of 38745985 is 58954783.

38745985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27836176 + 10909809 = 5276^2 + 3303^2 .

It is a cyclic number.

It is not a de Polignac number, because 38745985 - 2¹ = 38745983 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38745983) 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 3 ways as a sum of consecutive naturals, for example, 3874594 + ... + 3874603.

It is an arithmetic number, because the mean of its divisors is an integer number (11623797).

Almost surely, 2^38745985 is an apocalyptic number.

It is an amenable number.

38745985 is a deficient number, since it is larger than the sum of its proper divisors (7749203).

38745985 is an equidigital number, since it uses as much as digits as its factorization.

38745985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7749202.

The product of its digits is 1209600, while the sum is 49.

The square root of 38745985 is about 6224.6272980798. The cubic root of 38745985 is about 338.3832848398.

The spelling of 38745985 in words is "thirty-eight million, seven hundred forty-five thousand, nine hundred eighty-five".