28127826 has 24 divisors (see below), whose sum is σ = 64529244. Its totient is φ = 8824320.

The previous prime is 28127791. The next prime is 28127831. The reversal of 28127826 is 62872182.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28100601 + 27225 = 5301^2 + 165^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45655 + ... + 46266.

Almost surely, 2^28127826 is an apocalyptic number.

28127826 is an abundant number, since it is smaller than the sum of its proper divisors (36401418).

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

28127826 is a wasteful number, since it uses less digits than its factorization.

28127826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91946 (or 91943 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 28127826 is about 5303.5672900417. The cubic root of 28127826 is about 304.1202850985.

The spelling of 28127826 in words is "twenty-eight million, one hundred twenty-seven thousand, eight hundred twenty-six".