28286901 has 24 divisors (see below), whose sum is σ = 43112160. Its totient is φ = 18528912.

The previous prime is 28286873. The next prime is 28286927. The reversal of 28286901 is 10968282.

It is not a de Polignac number, because 28286901 - 2¹¹ = 28284853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28286971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13351 + ... + 15323.

It is an arithmetic number, because the mean of its divisors is an integer number (1796340).

Almost surely, 2^28286901 is an apocalyptic number.

It is an amenable number.

28286901 is a deficient number, since it is larger than the sum of its proper divisors (14825259).

28286901 is an equidigital number, since it uses as much as digits as its factorization.

28286901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047 (or 2035 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 28286901 is about 5318.5431275867. The cubic root of 28286901 is about 304.6925182132.

The spelling of 28286901 in words is "twenty-eight million, two hundred eighty-six thousand, nine hundred one".