3822621 has 8 divisors (see below), whose sum is σ = 5560224. Its totient is φ = 2316720.

The previous prime is 3822619. The next prime is 3822631. The reversal of 3822621 is 1262283.

3822621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3822621 - 2¹ = 3822619 is a prime.

It is a super-2 number, since 2×3822621² = 29224862619282, which contains 22 as substring.

It is an Ulam number.

3822621 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3822591 and 3822600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3822601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57886 + ... + 57951.

It is an arithmetic number, because the mean of its divisors is an integer number (695028).

Almost surely, 2^3822621 is an apocalyptic number.

It is an amenable number.

3822621 is a deficient number, since it is larger than the sum of its proper divisors (1737603).

3822621 is a wasteful number, since it uses less digits than its factorization.

3822621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115851.

The product of its digits is 1152, while the sum is 24.

The square root of 3822621 is about 1955.1524237256. The cubic root of 3822621 is about 156.3581105669.

It can be divided in two parts, 382 and 2621, that added together give a palindrome (3003).

The spelling of 3822621 in words is "three million, eight hundred twenty-two thousand, six hundred twenty-one".