3664481 has 4 divisors (see below), whose sum is σ = 3686592. Its totient is φ = 3642372.

The previous prime is 3664447. The next prime is 3664483. The reversal of 3664481 is 1844663.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1844663 = 331 ⋅5573.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3664481 is a prime.

It is a super-2 number, since 2×3664481² = 26856841998722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3664483) 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, 10805 + ... + 11138.

It is an arithmetic number, because the mean of its divisors is an integer number (921648).

Almost surely, 2^3664481 is an apocalyptic number.

It is an amenable number.

3664481 is a deficient number, since it is larger than the sum of its proper divisors (22111).

3664481 is a wasteful number, since it uses less digits than its factorization.

3664481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22110.

The product of its digits is 13824, while the sum is 32.

The square root of 3664481 is about 1914.2834168430. The cubic root of 3664481 is about 154.1715213795.

The spelling of 3664481 in words is "three million, six hundred sixty-four thousand, four hundred eighty-one".