28662253 has 8 divisors (see below), whose sum is σ = 29219360. Its totient is φ = 28108080.

The previous prime is 28662247. The next prime is 28662269. The reversal of 28662253 is 35226682.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28662253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28662653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32938 + ... + 33796.

It is an arithmetic number, because the mean of its divisors is an integer number (3652420).

Almost surely, 2^28662253 is an apocalyptic number.

It is an amenable number.

28662253 is a deficient number, since it is larger than the sum of its proper divisors (557107).

28662253 is an equidigital number, since it uses as much as digits as its factorization.

28662253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467.

The product of its digits is 34560, while the sum is 34.

The square root of 28662253 is about 5353.7139445435. The cubic root of 28662253 is about 306.0343027602.

The spelling of 28662253 in words is "twenty-eight million, six hundred sixty-two thousand, two hundred fifty-three".