28264541 has 4 divisors (see below), whose sum is σ = 28622400. Its totient is φ = 27906684.

The previous prime is 28264519. The next prime is 28264573. The reversal of 28264541 is 14546282.

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 a cyclic number.

It is not a de Polignac number, because 28264541 - 2⁶ = 28264477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28264498 and 28264507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28264501) 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, 178811 + ... + 178968.

It is an arithmetic number, because the mean of its divisors is an integer number (7155600).

Almost surely, 2^28264541 is an apocalyptic number.

It is an amenable number.

28264541 is a deficient number, since it is larger than the sum of its proper divisors (357859).

28264541 is an equidigital number, since it uses as much as digits as its factorization.

28264541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357858.

The product of its digits is 15360, while the sum is 32.

The square root of 28264541 is about 5316.4406326037. The cubic root of 28264541 is about 304.6122134267.

The spelling of 28264541 in words is "twenty-eight million, two hundred sixty-four thousand, five hundred forty-one".