28898141 has 4 divisors (see below), whose sum is σ = 29388000. Its totient is φ = 28408284.

The previous prime is 28898137. The next prime is 28898161. The reversal of 28898141 is 14189882.

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 28898141 - 2² = 28898137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28898161) 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, 244841 + ... + 244958.

It is an arithmetic number, because the mean of its divisors is an integer number (7347000).

Almost surely, 2^28898141 is an apocalyptic number.

It is an amenable number.

28898141 is a deficient number, since it is larger than the sum of its proper divisors (489859).

28898141 is an equidigital number, since it uses as much as digits as its factorization.

28898141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489858.

The product of its digits is 36864, while the sum is 41.

The square root of 28898141 is about 5375.6991173242. The cubic root of 28898141 is about 306.8715558699.

The spelling of 28898141 in words is "twenty-eight million, eight hundred ninety-eight thousand, one hundred forty-one".