3664871 has 4 divisors (see below), whose sum is σ = 4188432. Its totient is φ = 3141312.

The previous prime is 3664861. The next prime is 3664873. The reversal of 3664871 is 1784663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1784663 = 293 ⋅6091.

It is a cyclic number.

It is not a de Polignac number, because 3664871 - 2¹⁴ = 3648487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3664873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261770 + ... + 261783.

It is an arithmetic number, because the mean of its divisors is an integer number (1047108).

Almost surely, 2^3664871 is an apocalyptic number.

3664871 is a deficient number, since it is larger than the sum of its proper divisors (523561).

3664871 is an equidigital number, since it uses as much as digits as its factorization.

3664871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523560.

The product of its digits is 24192, while the sum is 35.

The square root of 3664871 is about 1914.3852799267. The cubic root of 3664871 is about 154.1769905269.

The spelling of 3664871 in words is "three million, six hundred sixty-four thousand, eight hundred seventy-one".