2401663 has 8 divisors (see below), whose sum is σ = 2704896. Its totient is φ = 2112600.

The previous prime is 2401639. The next prime is 2401667. The reversal of 2401663 is 3661042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2401663 - 2¹⁷ = 2270591 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2401667) 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 7 ways as a sum of consecutive naturals, for example, 3181 + ... + 3862.

It is an arithmetic number, because the mean of its divisors is an integer number (338112).

2^2401663 is an apocalyptic number.

2401663 is a deficient number, since it is larger than the sum of its proper divisors (303233).

2401663 is a wasteful number, since it uses less digits than its factorization.

2401663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7085.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2401663 is about 1549.7299764798. The cubic root of 2401663 is about 133.9175069598.

The spelling of 2401663 in words is "two million, four hundred one thousand, six hundred sixty-three".