3782881 has 8 divisors (see below), whose sum is σ = 4022720. Its totient is φ = 3547152.

The previous prime is 3782869. The next prime is 3782893. The reversal of 3782881 is 1882873.

It is an interprime number because it is at equal distance from previous prime (3782869) and next prime (3782893).

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 3782881 - 2⁹ = 3782369 is a prime.

It is a super-2 number, since 2×3782881² = 28620377320322, 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 3782881.

It is not an unprimeable number, because it can be changed into a prime (3782081) 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, 991 + ... + 2923.

It is an arithmetic number, because the mean of its divisors is an integer number (502840).

Almost surely, 2^3782881 is an apocalyptic number.

It is an amenable number.

3782881 is a deficient number, since it is larger than the sum of its proper divisors (239839).

3782881 is a wasteful number, since it uses less digits than its factorization.

3782881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055.

The product of its digits is 21504, while the sum is 37.

The square root of 3782881 is about 1944.9629816529. The cubic root of 3782881 is about 155.8143886019.

The spelling of 3782881 in words is "three million, seven hundred eighty-two thousand, eight hundred eighty-one".