3664847 has 4 divisors (see below), whose sum is σ = 3750120. Its totient is φ = 3579576.

The previous prime is 3664841. The next prime is 3664861. The reversal of 3664847 is 7484663.

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: 7484663 = 733 ⋅10211.

It is a cyclic number.

It is not a de Polignac number, because 3664847 - 2⁴ = 3664831 is a prime.

It is a super-2 number, since 2×3664847² = 26862207066818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3664847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3664841) 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, 42572 + ... + 42657.

It is an arithmetic number, because the mean of its divisors is an integer number (937530).

Almost surely, 2^3664847 is an apocalyptic number.

3664847 is a deficient number, since it is larger than the sum of its proper divisors (85273).

3664847 is an equidigital number, since it uses as much as digits as its factorization.

3664847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85272.

The product of its digits is 96768, while the sum is 38.

The square root of 3664847 is about 1914.3790115857. The cubic root of 3664847 is about 154.1766539752.

The spelling of 3664847 in words is "three million, six hundred sixty-four thousand, eight hundred forty-seven".