28282001 has 8 divisors (see below), whose sum is σ = 31225824. Its totient is φ = 25400320.

The previous prime is 28281991. The next prime is 28282021. The reversal of 28282001 is 10028282.

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

It is not a de Polignac number, because 28282001 - 2¹⁰ = 28280977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28282021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14576 + ... + 16401.

It is an arithmetic number, because the mean of its divisors is an integer number (3903228).

Almost surely, 2^28282001 is an apocalyptic number.

It is an amenable number.

28282001 is a deficient number, since it is larger than the sum of its proper divisors (2943823).

28282001 is a wasteful number, since it uses less digits than its factorization.

28282001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31071.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 28282001 is about 5318.0824551712. The cubic root of 28282001 is about 304.6749237378.

The spelling of 28282001 in words is "twenty-eight million, two hundred eighty-two thousand, one".