3664505 has 8 divisors (see below), whose sum is σ = 4735752. Its totient is φ = 2706048.

The previous prime is 3664499. The next prime is 3664519. The reversal of 3664505 is 5054663.

It can be written as a sum of positive squares in 4 ways, for example, as 141376 + 3523129 = 376^2 + 1877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3664505 - 2⁸ = 3664249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28124 + ... + 28253.

It is an arithmetic number, because the mean of its divisors is an integer number (591969).

Almost surely, 2^3664505 is an apocalyptic number.

It is an amenable number.

3664505 is a deficient number, since it is larger than the sum of its proper divisors (1071247).

3664505 is a wasteful number, since it uses less digits than its factorization.

3664505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56395.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 3664505 is about 1914.2896854969. The cubic root of 3664505 is about 154.1718579536.

The spelling of 3664505 in words is "three million, six hundred sixty-four thousand, five hundred five".