3642663 has 4 divisors (see below), whose sum is σ = 4856888. Its totient is φ = 2428440.

The previous prime is 3642649. The next prime is 3642673. The reversal of 3642663 is 3662463.

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

It is not a de Polignac number, because 3642663 - 2⁵ = 3642631 is a prime.

It is a D-number.

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 3642663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642643) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 607108 + ... + 607113.

It is an arithmetic number, because the mean of its divisors is an integer number (1214222).

Almost surely, 2^3642663 is an apocalyptic number.

3642663 is a deficient number, since it is larger than the sum of its proper divisors (1214225).

3642663 is a wasteful number, since it uses less digits than its factorization.

3642663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214224.

The product of its digits is 15552, while the sum is 30.

The square root of 3642663 is about 1908.5761708666. The cubic root of 3642663 is about 153.8649375206.

The spelling of 3642663 in words is "three million, six hundred forty-two thousand, six hundred sixty-three".