28241087 has 16 divisors (see below), whose sum is σ = 34809600. Its totient is φ = 22368960.

The previous prime is 28241071. The next prime is 28241107. The reversal of 28241087 is 78014282.

It is a cyclic number.

It is not a de Polignac number, because 28241087 - 2⁴ = 28241071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28241287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2864 + ... + 8042.

It is an arithmetic number, because the mean of its divisors is an integer number (2175600).

Almost surely, 2^28241087 is an apocalyptic number.

28241087 is a deficient number, since it is larger than the sum of its proper divisors (6568513).

28241087 is a wasteful number, since it uses less digits than its factorization.

28241087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5246.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 28241087 is about 5314.2343757121. The cubic root of 28241087 is about 304.5279340711.

The spelling of 28241087 in words is "twenty-eight million, two hundred forty-one thousand, eighty-seven".