28127754 has 12 divisors (see below), whose sum is σ = 60943506. Its totient is φ = 9375912.

The previous prime is 28127753. The next prime is 28127779. The reversal of 28127754 is 45772182.

It can be written as a sum of positive squares in only one way, i.e., 21762225 + 6365529 = 4665^2 + 2523^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28127753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 781309 + ... + 781344.

Almost surely, 2^28127754 is an apocalyptic number.

28127754 is an abundant number, since it is smaller than the sum of its proper divisors (32815752).

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

28127754 is a wasteful number, since it uses less digits than its factorization.

28127754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562661 (or 1562658 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 28127754 is about 5303.5605021532. The cubic root of 28127754 is about 304.1200256084.

The spelling of 28127754 in words is "twenty-eight million, one hundred twenty-seven thousand, seven hundred fifty-four".