3622861 has 12 divisors (see below), whose sum is σ = 4043200. Its totient is φ = 3243240.

The previous prime is 3622859. The next prime is 3622873. The reversal of 3622861 is 1682263.

It is not a de Polignac number, because 3622861 - 2¹ = 3622859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3622811) 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, 9370 + ... + 9748.

Almost surely, 2^3622861 is an apocalyptic number.

It is an amenable number.

3622861 is a deficient number, since it is larger than the sum of its proper divisors (420339).

3622861 is a wasteful number, since it uses less digits than its factorization.

3622861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 469 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 3622861 is about 1903.3814646570. The cubic root of 3622861 is about 153.5856206926.

It can be divided in two parts, 362 and 2861, that added together give a palindrome (3223).

The spelling of 3622861 in words is "three million, six hundred twenty-two thousand, eight hundred sixty-one".