3773881 has 8 divisors (see below), whose sum is σ = 4051944. Its totient is φ = 3502080.

The previous prime is 3773879. The next prime is 3773893. The reversal of 3773881 is 1883773.

It can be written as a sum of positive squares in 4 ways, for example, as 2295225 + 1478656 = 1515^2 + 1216^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3773881 - 2¹ = 3773879 is a prime.

It is a super-2 number, since 2×3773881² = 28484355604322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3773881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3773821) 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 7 ways as a sum of consecutive naturals, for example, 280 + ... + 2761.

It is an arithmetic number, because the mean of its divisors is an integer number (506493).

Almost surely, 2^3773881 is an apocalyptic number.

It is an amenable number.

3773881 is a deficient number, since it is larger than the sum of its proper divisors (278063).

3773881 is a wasteful number, since it uses less digits than its factorization.

3773881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131.

The product of its digits is 28224, while the sum is 37.

The square root of 3773881 is about 1942.6479351648. The cubic root of 3773881 is about 155.6907224436.

The spelling of 3773881 in words is "three million, seven hundred seventy-three thousand, eight hundred eighty-one".