3622143 has 16 divisors (see below), whose sum is σ = 5564160. Its totient is φ = 2053056.

The previous prime is 3622123. The next prime is 3622159. The reversal of 3622143 is 3412263.

It is a happy number.

It is not a de Polignac number, because 3622143 - 2⁵ = 3622111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3622123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2248 + ... + 3506.

It is an arithmetic number, because the mean of its divisors is an integer number (347760).

Almost surely, 2^3622143 is an apocalyptic number.

3622143 is a deficient number, since it is larger than the sum of its proper divisors (1942017).

3622143 is a wasteful number, since it uses less digits than its factorization.

3622143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406.

The product of its digits is 864, while the sum is 21.

The square root of 3622143 is about 1903.1928436183. The cubic root of 3622143 is about 153.5754738536.

The spelling of 3622143 in words is "three million, six hundred twenty-two thousand, one hundred forty-three".