3778223 has 4 divisors (see below), whose sum is σ = 3790608. Its totient is φ = 3765840.

The previous prime is 3778217. The next prime is 3778237. The reversal of 3778223 is 3228773.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3228773 = 29 ⋅111337.

It is a cyclic number.

It is not a de Polignac number, because 3778223 - 2⁸ = 3777967 is a prime.

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 3778223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3778213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5723 + ... + 6348.

It is an arithmetic number, because the mean of its divisors is an integer number (947652).

Almost surely, 2^3778223 is an apocalyptic number.

3778223 is a deficient number, since it is larger than the sum of its proper divisors (12385).

3778223 is a wasteful number, since it uses less digits than its factorization.

3778223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12384.

The product of its digits is 14112, while the sum is 32.

The square root of 3778223 is about 1943.7651607126. The cubic root of 3778223 is about 155.7504090124.

The spelling of 3778223 in words is "three million, seven hundred seventy-eight thousand, two hundred twenty-three".