28359541 has 4 divisors (see below), whose sum is σ = 32410912. Its totient is φ = 24308172.

The previous prime is 28359521. The next prime is 28359607. The reversal of 28359541 is 14595382.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 28359541 - 2⁹ = 28359029 is a prime.

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 28359541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28359521) 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, 2025675 + ... + 2025688.

It is an arithmetic number, because the mean of its divisors is an integer number (8102728).

Almost surely, 2^28359541 is an apocalyptic number.

It is an amenable number.

28359541 is a deficient number, since it is larger than the sum of its proper divisors (4051371).

28359541 is an equidigital number, since it uses as much as digits as its factorization.

28359541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051370.

The product of its digits is 43200, while the sum is 37.

The square root of 28359541 is about 5325.3676868363. The cubic root of 28359541 is about 304.9531093371.

It can be divided in two parts, 28359 and 541, that added together give a square (28900 = 170²).

The spelling of 28359541 in words is "twenty-eight million, three hundred fifty-nine thousand, five hundred forty-one".