3664143 has 16 divisors (see below), whose sum is σ = 6204160. Its totient is φ = 2093688.

The previous prime is 3664139. The next prime is 3664183. The reversal of 3664143 is 3414663.

It is not a de Polignac number, because 3664143 - 2² = 3664139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

3664143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3664103) 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, 9505 + ... + 9882.

It is an arithmetic number, because the mean of its divisors is an integer number (387760).

Almost surely, 2^3664143 is an apocalyptic number.

3664143 is a deficient number, since it is larger than the sum of its proper divisors (2540017).

3664143 is a wasteful number, since it uses less digits than its factorization.

3664143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19403 (or 19397 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 3664143 is about 1914.1951311191. The cubic root of 3664143 is about 154.1667811378.

The spelling of 3664143 in words is "three million, six hundred sixty-four thousand, one hundred forty-three".