3778243 has 12 divisors (see below), whose sum is σ = 4452840. Its totient is φ = 3196032.

The previous prime is 3778241. The next prime is 3778253. The reversal of 3778243 is 3428773.

It is not a de Polignac number, because 3778243 - 2¹ = 3778241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3778199 and 3778208.

It is not an unprimeable number, because it can be changed into a prime (3778241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3603 + ... + 4531.

It is an arithmetic number, because the mean of its divisors is an integer number (371070).

Almost surely, 2^3778243 is an apocalyptic number.

3778243 is a deficient number, since it is larger than the sum of its proper divisors (674597).

3778243 is an equidigital number, since it uses as much as digits as its factorization.

3778243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026 (or 1019 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 3778243 is about 1943.7703053602. The cubic root of 3778243 is about 155.7506838332.

The spelling of 3778243 in words is "three million, seven hundred seventy-eight thousand, two hundred forty-three".