28247914 has 16 divisors (see below), whose sum is σ = 46413000. Its totient is φ = 12834304.

The previous prime is 28247903. The next prime is 28247917. The reversal of 28247914 is 41974282.

It can be written as a sum of positive squares in 4 ways, for example, as 26471025 + 1776889 = 5145^2 + 1333^2 .

It is not an unprimeable number, because it can be changed into a prime (28247917) 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, 13339 + ... + 15310.

Almost surely, 2^28247914 is an apocalyptic number.

28247914 is a deficient number, since it is larger than the sum of its proper divisors (18165086).

28247914 is a wasteful number, since it uses less digits than its factorization.

28247914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28697.

The product of its digits is 32256, while the sum is 37.

The square root of 28247914 is about 5314.8766683715. The cubic root of 28247914 is about 304.5524709536.

It can be divided in two parts, 28247 and 914, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 28247914 in words is "twenty-eight million, two hundred forty-seven thousand, nine hundred fourteen".