3648863 has 4 divisors (see below), whose sum is σ = 3863520. Its totient is φ = 3434208.

The previous prime is 3648859. The next prime is 3648899. The reversal of 3648863 is 3688463.

3648863 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3648863 - 2² = 3648859 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 (3648833) 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, 107303 + ... + 107336.

It is an arithmetic number, because the mean of its divisors is an integer number (965880).

Almost surely, 2^3648863 is an apocalyptic number.

3648863 is a deficient number, since it is larger than the sum of its proper divisors (214657).

3648863 is a wasteful number, since it uses less digits than its factorization.

3648863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214656.

The product of its digits is 82944, while the sum is 38.

The square root of 3648863 is about 1910.1997277772. The cubic root of 3648863 is about 153.9521833893.

The spelling of 3648863 in words is "three million, six hundred forty-eight thousand, eight hundred sixty-three".