3775818 has 16 divisors (see below), whose sum is σ = 7880256. Its totient is φ = 1203840.

The previous prime is 3775817. The next prime is 3775859. The reversal of 3775818 is 8185773.

It is not an unprimeable number, because it can be changed into a prime (3775817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13543 + ... + 13818.

It is an arithmetic number, because the mean of its divisors is an integer number (492516).

Almost surely, 2^3775818 is an apocalyptic number.

3775818 is an abundant number, since it is smaller than the sum of its proper divisors (4104438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3775818 is a wasteful number, since it uses less digits than its factorization.

3775818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27389.

The product of its digits is 47040, while the sum is 39.

The square root of 3775818 is about 1943.1464175404. The cubic root of 3775818 is about 155.7173547397.

It can be divided in two parts, 37 and 75818, that added together give a triangular number (75855 = T₃₈₉).

The spelling of 3775818 in words is "three million, seven hundred seventy-five thousand, eight hundred eighteen".