28817127 has 12 divisors (see below), whose sum is σ = 43166760. Its totient is φ = 19211256.

The previous prime is 28817101. The next prime is 28817177. The reversal of 28817127 is 72171882.

It is a happy number.

It is not a de Polignac number, because 28817127 - 2¹¹ = 28815079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28817091 and 28817100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28817177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59052 + ... + 59537.

It is an arithmetic number, because the mean of its divisors is an integer number (3597230).

Almost surely, 2^28817127 is an apocalyptic number.

28817127 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28817127 is a deficient number, since it is larger than the sum of its proper divisors (14349633).

28817127 is an equidigital number, since it uses as much as digits as its factorization.

28817127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118604 (or 118592 counting only the distinct ones).

The product of its digits is 12544, while the sum is 36.

The square root of 28817127 is about 5368.1586228427. The cubic root of 28817127 is about 306.5845228687.

The spelling of 28817127 in words is "twenty-eight million, eight hundred seventeen thousand, one hundred twenty-seven".