3622881 has 4 divisors (see below), whose sum is σ = 4830512. Its totient is φ = 2415252.

The previous prime is 3622873. The next prime is 3622889. The reversal of 3622881 is 1882263.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (3622873) and next prime (3622889).

It is not a de Polignac number, because 3622881 - 2³ = 3622873 is a prime.

It is a super-2 number, since 2×3622881² = 26250533480322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3622889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603811 + ... + 603816.

It is an arithmetic number, because the mean of its divisors is an integer number (1207628).

Almost surely, 2^3622881 is an apocalyptic number.

It is an amenable number.

3622881 is a deficient number, since it is larger than the sum of its proper divisors (1207631).

3622881 is a wasteful number, since it uses less digits than its factorization.

3622881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207630.

The product of its digits is 4608, while the sum is 30.

The square root of 3622881 is about 1903.3867184574. The cubic root of 3622881 is about 153.5859033151.

The spelling of 3622881 in words is "three million, six hundred twenty-two thousand, eight hundred eighty-one".