4049663 has 4 divisors (see below), whose sum is σ = 4053888. Its totient is φ = 4045440.

The previous prime is 4049609. The next prime is 4049707. The reversal of 4049663 is 3669404.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4049663 - 2¹² = 4045567 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 (4049063) 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, 95 + ... + 2847.

It is an arithmetic number, because the mean of its divisors is an integer number (1013472).

Almost surely, 2^4049663 is an apocalyptic number.

4049663 is a deficient number, since it is larger than the sum of its proper divisors (4225).

4049663 is a wasteful number, since it uses less digits than its factorization.

4049663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 4049663 is about 2012.3774496848. The cubic root of 4049663 is about 159.3943640703.

The spelling of 4049663 in words is "four million, forty-nine thousand, six hundred sixty-three".