3775845 has 16 divisors (see below), whose sum is σ = 6075072. Its totient is φ = 2002560.

The previous prime is 3775817. The next prime is 3775859. The reversal of 3775845 is 5485773.

It is not a de Polignac number, because 3775845 - 2⁶ = 3775781 is a prime.

3775845 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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, 2569 + ... + 3761.

It is an arithmetic number, because the mean of its divisors is an integer number (379692).

Almost surely, 2^3775845 is an apocalyptic number.

It is an amenable number.

3775845 is a deficient number, since it is larger than the sum of its proper divisors (2299227).

3775845 is a wasteful number, since it uses less digits than its factorization.

3775845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412.

The product of its digits is 117600, while the sum is 39.

The square root of 3775845 is about 1943.1533650229. The cubic root of 3775845 is about 155.7177259051.

Adding to 3775845 its product of digits (117600), we get a triangular number (3893445 = T₂₇₉₀).

The spelling of 3775845 in words is "three million, seven hundred seventy-five thousand, eight hundred forty-five".