3664571 has 4 divisors (see below), whose sum is σ = 3880152. Its totient is φ = 3448992.

The previous prime is 3664561. The next prime is 3664631. The reversal of 3664571 is 1754663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1754663 = 67 ⋅26189.

It is a cyclic number.

It is not a de Polignac number, because 3664571 - 2¹⁰ = 3663547 is a prime.

It is a super-2 number, since 2×3664571² = 26858161228082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3664561) 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, 107765 + ... + 107798.

It is an arithmetic number, because the mean of its divisors is an integer number (970038).

Almost surely, 2^3664571 is an apocalyptic number.

3664571 is a deficient number, since it is larger than the sum of its proper divisors (215581).

3664571 is a wasteful number, since it uses less digits than its factorization.

3664571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215580.

The product of its digits is 15120, while the sum is 32.

The square root of 3664571 is about 1914.3069241895. The cubic root of 3664571 is about 154.1727835249.

The spelling of 3664571 in words is "three million, six hundred sixty-four thousand, five hundred seventy-one".