28829543 has 4 divisors (see below), whose sum is σ = 28907208. Its totient is φ = 28751880.

The previous prime is 28829539. The next prime is 28829551. The reversal of 28829543 is 34592882.

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

It is a cyclic number.

It is not a de Polignac number, because 28829543 - 2² = 28829539 is a prime.

It is a super-2 number, since 2×28829543² = 1662285099177698, which contains 22 as substring.

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 28829543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28829443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38273 + ... + 39018.

It is an arithmetic number, because the mean of its divisors is an integer number (7226802).

Almost surely, 2^28829543 is an apocalyptic number.

28829543 is a deficient number, since it is larger than the sum of its proper divisors (77665).

28829543 is an equidigital number, since it uses as much as digits as its factorization.

28829543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77664.

The product of its digits is 138240, while the sum is 41.

The square root of 28829543 is about 5369.3149469928. The cubic root of 28829543 is about 306.6285476932.

The spelling of 28829543 in words is "twenty-eight million, eight hundred twenty-nine thousand, five hundred forty-three".