28277127 has 16 divisors (see below), whose sum is σ = 42785280. Its totient is φ = 18449496.

The previous prime is 28277089. The next prime is 28277141. The reversal of 28277127 is 72177282.

It is not a de Polignac number, because 28277127 - 2⁶ = 28277063 is a prime.

It is a super-2 number, since 2×28277127² = 1599191822748258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28277091 and 28277100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28277147) 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, 9873 + ... + 12410.

It is an arithmetic number, because the mean of its divisors is an integer number (2674080).

Almost surely, 2^28277127 is an apocalyptic number.

28277127 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28277127 is a deficient number, since it is larger than the sum of its proper divisors (14508153).

28277127 is a wasteful number, since it uses less digits than its factorization.

28277127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22339 (or 22333 counting only the distinct ones).

The product of its digits is 21952, while the sum is 36.

The square root of 28277127 is about 5317.6241875484. The cubic root of 28277127 is about 304.6574206046.

It can be divided in two parts, 2 and 8277127, that added together give a square (8277129 = 2877²).

The spelling of 28277127 in words is "twenty-eight million, two hundred seventy-seven thousand, one hundred twenty-seven".