3822778 has 8 divisors (see below), whose sum is σ = 5775840. Its totient is φ = 1897500.

The previous prime is 3822769. The next prime is 3822779. The reversal of 3822778 is 8772283.

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

It is a super-2 number, since 2×3822778² = 29227263274568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3822779) 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, 6598 + ... + 7153.

It is an arithmetic number, because the mean of its divisors is an integer number (721980).

Almost surely, 2^3822778 is an apocalyptic number.

3822778 is a deficient number, since it is larger than the sum of its proper divisors (1953062).

3822778 is a wasteful number, since it uses less digits than its factorization.

3822778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13892.

The product of its digits is 37632, while the sum is 37.

The square root of 3822778 is about 1955.1925736357. The cubic root of 3822778 is about 156.3602511477.

It can be divided in two parts, 382 and 2778, that added together give a triangular number (3160 = T₇₉).

The spelling of 3822778 in words is "three million, eight hundred twenty-two thousand, seven hundred seventy-eight".