3778785 has 32 divisors (see below), whose sum is σ = 7015680. Its totient is φ = 1926144.

The previous prime is 3778771. The next prime is 3778793. The reversal of 3778785 is 5878773.

3778785 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 3778785 - 2⁴ = 3778769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3778785.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2497 + ... + 3713.

It is an arithmetic number, because the mean of its divisors is an integer number (219240).

Almost surely, 2^3778785 is an apocalyptic number.

It is an amenable number.

3778785 is a deficient number, since it is larger than the sum of its proper divisors (3236895).

3778785 is a wasteful number, since it uses less digits than its factorization.

3778785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254 (or 1248 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The square root of 3778785 is about 1943.9097201259. The cubic root of 3778785 is about 155.7581311074.

The spelling of 3778785 in words is "three million, seven hundred seventy-eight thousand, seven hundred eighty-five".