3878622 has 48 divisors (see below), whose sum is σ = 9659520. Its totient is φ = 1112400.

The previous prime is 3878621. The next prime is 3878629. The reversal of 3878622 is 2268783.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3247 + ... + 4277.

It is an arithmetic number, because the mean of its divisors is an integer number (201240).

Almost surely, 2^3878622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3878622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4829760).

3878622 is an abundant number, since it is smaller than the sum of its proper divisors (5780898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3878622 is a wasteful number, since it uses less digits than its factorization.

3878622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069 (or 1066 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 3878622 is about 1969.4217425427. The cubic root of 3878622 is about 157.1179553615.

It can be divided in two parts, 387 and 8622, that added together give a palindrome (9009).

The spelling of 3878622 in words is "three million, eight hundred seventy-eight thousand, six hundred twenty-two".