28641085 has 8 divisors (see below), whose sum is σ = 37493856. Its totient is φ = 20829840.

The previous prime is 28641079. The next prime is 28641097. The reversal of 28641085 is 58014682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28641085 - 2³ = 28641077 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 28641085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260319 + ... + 260428.

It is an arithmetic number, because the mean of its divisors is an integer number (4686732).

Almost surely, 2^28641085 is an apocalyptic number.

It is an amenable number.

28641085 is a deficient number, since it is larger than the sum of its proper divisors (8852771).

28641085 is a wasteful number, since it uses less digits than its factorization.

28641085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520763.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 28641085 is about 5351.7366340282. The cubic root of 28641085 is about 305.9589454654.

The spelling of 28641085 in words is "twenty-eight million, six hundred forty-one thousand, eighty-five".