541663 has 8 divisors (see below), whose sum is σ = 567936. Its totient is φ = 516000.

The previous prime is 541661. The next prime is 541669. The reversal of 541663 is 366145.

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 541663 - 2¹ = 541661 is a prime.

It is a d-powerful number, because it can be written as 5³ + 4⁵ + 6⁴ + 1 + 6⁵ + 3¹² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3045 + ... + 3217.

It is an arithmetic number, because the mean of its divisors is an integer number (70992).

2⁵⁴¹⁶⁶³ is an apocalyptic number.

541663 is a deficient number, since it is larger than the sum of its proper divisors (26273).

541663 is a wasteful number, since it uses less digits than its factorization.

541663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its digits is 2160, while the sum is 25.

The square root of 541663 is about 735.9775811803. The cubic root of 541663 is about 81.5160368407.

The spelling of 541663 in words is "five hundred forty-one thousand, six hundred sixty-three".