28604141 has 4 divisors (see below), whose sum is σ = 28633500. Its totient is φ = 28574784.

The previous prime is 28604129. The next prime is 28604167. The reversal of 28604141 is 14140682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14140682 = 2 ⋅7070341.

It can be written as a sum of positive squares in 2 ways, for example, as 4141225 + 24462916 = 2035^2 + 4946^2 .

It is a cyclic number.

It is not a de Polignac number, because 28604141 - 2⁶ = 28604077 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 28604141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28604171) 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, 13166 + ... + 15183.

It is an arithmetic number, because the mean of its divisors is an integer number (7158375).

Almost surely, 2^28604141 is an apocalyptic number.

It is an amenable number.

28604141 is a deficient number, since it is larger than the sum of its proper divisors (29359).

28604141 is a wasteful number, since it uses less digits than its factorization.

28604141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29358.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 28604141 is about 5348.2839303837. The cubic root of 28604141 is about 305.8273371970.

The spelling of 28604141 in words is "twenty-eight million, six hundred four thousand, one hundred forty-one".