28653486 has 32 divisors (see below), whose sum is σ = 59670528. Its totient is φ = 9162720.

The previous prime is 28653473. The next prime is 28653491. The reversal of 28653486 is 68435682.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23016 + ... + 24228.

It is an arithmetic number, because the mean of its divisors is an integer number (1864704).

Almost surely, 2^28653486 is an apocalyptic number.

28653486 is an abundant number, since it is smaller than the sum of its proper divisors (31017042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28653486 is a wasteful number, since it uses less digits than its factorization.

28653486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376.

The product of its digits is 276480, while the sum is 42.

The square root of 28653486 is about 5352.8951045205. The cubic root of 28653486 is about 306.0030970681.

The spelling of 28653486 in words is "twenty-eight million, six hundred fifty-three thousand, four hundred eighty-six".