3664522 has 4 divisors (see below), whose sum is σ = 5496786. Its totient is φ = 1832260.

The previous prime is 3664519. The next prime is 3664547. The reversal of 3664522 is 2254663.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2254663 = 29 ⋅77747.

It can be written as a sum of positive squares in only one way, i.e., 2852721 + 811801 = 1689^2 + 901^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 916129 + ... + 916132.

Almost surely, 2^3664522 is an apocalyptic number.

3664522 is a deficient number, since it is larger than the sum of its proper divisors (1832264).

3664522 is a wasteful number, since it uses less digits than its factorization.

3664522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832263.

The product of its digits is 8640, while the sum is 28.

The square root of 3664522 is about 1914.2941257811. The cubic root of 3664522 is about 154.1720963594.

It can be divided in two parts, 3664 and 522, that added together give a triangular number (4186 = T₉₁).

The spelling of 3664522 in words is "three million, six hundred sixty-four thousand, five hundred twenty-two".