28247898 has 32 divisors (see below), whose sum is σ = 64842624. Its totient is φ = 8036352.

The previous prime is 28247881. The next prime is 28247899. The reversal of 28247898 is 89874282.

It is not an unprimeable number, because it can be changed into a prime (28247899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9486 + ... + 12102.

It is an arithmetic number, because the mean of its divisors is an integer number (2026332).

Almost surely, 2^28247898 is an apocalyptic number.

28247898 is an abundant number, since it is smaller than the sum of its proper divisors (36594726).

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

28247898 is a wasteful number, since it uses less digits than its factorization.

28247898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886.

The product of its digits is 516096, while the sum is 48.

The square root of 28247898 is about 5314.8751631623. The cubic root of 28247898 is about 304.5524134527.

The spelling of 28247898 in words is "twenty-eight million, two hundred forty-seven thousand, eight hundred ninety-eight".