3644131 has 4 divisors (see below), whose sum is σ = 3647952. Its totient is φ = 3640312.

The previous prime is 3644129. The next prime is 3644149. The reversal of 3644131 is 1314463.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3644131 - 2¹ = 3644129 is a prime.

It is a super-2 number, since 2×3644131² = 26559381490322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3644231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861 + ... + 2833.

It is an arithmetic number, because the mean of its divisors is an integer number (911988).

Almost surely, 2^3644131 is an apocalyptic number.

3644131 is a deficient number, since it is larger than the sum of its proper divisors (3821).

3644131 is a wasteful number, since it uses less digits than its factorization.

3644131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820.

The product of its digits is 864, while the sum is 22.

The square root of 3644131 is about 1908.9607120106. The cubic root of 3644131 is about 153.8856040305.

Adding to 3644131 its reverse (1314463), we get a palindrome (4958594).

The spelling of 3644131 in words is "three million, six hundred forty-four thousand, one hundred thirty-one".