28858827 has 4 divisors (see below), whose sum is σ = 38478440. Its totient is φ = 19239216.

The previous prime is 28858807. The next prime is 28858867. The reversal of 28858827 is 72885882.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 28858827 - 2⁷ = 28858699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28858807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4809802 + ... + 4809807.

It is an arithmetic number, because the mean of its divisors is an integer number (9619610).

Almost surely, 2^28858827 is an apocalyptic number.

28858827 is a deficient number, since it is larger than the sum of its proper divisors (9619613).

28858827 is an equidigital number, since it uses as much as digits as its factorization.

28858827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9619612.

The product of its digits is 573440, while the sum is 48.

The square root of 28858827 is about 5372.0412321575. The cubic root of 28858827 is about 306.7323332650.

The spelling of 28858827 in words is "twenty-eight million, eight hundred fifty-eight thousand, eight hundred twenty-seven".