4541643 has 16 divisors (see below), whose sum is σ = 6844800. Its totient is φ = 2975400.

The previous prime is 4541629. The next prime is 4541671. The reversal of 4541643 is 3461454.

It is not a de Polignac number, because 4541643 - 2⁸ = 4541387 is a prime.

It is a super-2 number, since 2×4541643² = 41253042278898, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

4541643 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4541743) 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 15 ways as a sum of consecutive naturals, for example, 168 + ... + 3018.

It is an arithmetic number, because the mean of its divisors is an integer number (427800).

Almost surely, 2^4541643 is an apocalyptic number.

4541643 is a deficient number, since it is larger than the sum of its proper divisors (2303157).

4541643 is a wasteful number, since it uses less digits than its factorization.

4541643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919 (or 2913 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 4541643 is about 2131.1130894441. The cubic root of 4541643 is about 165.6040667978.

It can be divided in two parts, 4541 and 643, that added together give a square (5184 = 72²).

The spelling of 4541643 in words is "four million, five hundred forty-one thousand, six hundred forty-three".