3644481 has 4 divisors (see below), whose sum is σ = 4859312. Its totient is φ = 2429652.

The previous prime is 3644479. The next prime is 3644483. The reversal of 3644481 is 1844463.

3644481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (3644479) and next prime (3644483).

It is not a de Polignac number, because 3644481 - 2¹ = 3644479 is a prime.

It is a super-2 number, since 2×3644481² = 26564483518722, 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 (3644483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607411 + ... + 607416.

It is an arithmetic number, because the mean of its divisors is an integer number (1214828).

Almost surely, 2^3644481 is an apocalyptic number.

It is an amenable number.

3644481 is a deficient number, since it is larger than the sum of its proper divisors (1214831).

3644481 is a wasteful number, since it uses less digits than its factorization.

3644481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214830.

The product of its digits is 9216, while the sum is 30.

The square root of 3644481 is about 1909.0523827281. The cubic root of 3644481 is about 153.8905305125.

The spelling of 3644481 in words is "three million, six hundred forty-four thousand, four hundred eighty-one".