28385127 has 8 divisors (see below), whose sum is σ = 42052080. Its totient is φ = 18923400.

The previous prime is 28385111. The next prime is 28385177. The reversal of 28385127 is 72158382.

It is not a de Polignac number, because 28385127 - 2⁴ = 28385111 is a prime.

It is a super-2 number, since 2×28385127² = 1611430869612258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28385091 and 28385100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28385177) 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, 525624 + ... + 525677.

It is an arithmetic number, because the mean of its divisors is an integer number (5256510).

Almost surely, 2^28385127 is an apocalyptic number.

28385127 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28385127 is a deficient number, since it is larger than the sum of its proper divisors (13666953).

28385127 is a wasteful number, since it uses less digits than its factorization.

28385127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051310 (or 1051304 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 28385127 is about 5327.7694206863. The cubic root of 28385127 is about 305.0447914151.

The spelling of 28385127 in words is "twenty-eight million, three hundred eighty-five thousand, one hundred twenty-seven".