28995127 has 4 divisors (see below), whose sum is σ = 33137296. Its totient is φ = 24852960.

The previous prime is 28995119. The next prime is 28995139. The reversal of 28995127 is 72159982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72159982 = 2 ⋅36079991.

It is a cyclic number.

It is not a de Polignac number, because 28995127 - 2³ = 28995119 is a prime.

It is a super-2 number, since 2×28995127² = 1681434779492258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28995167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2071074 + ... + 2071087.

It is an arithmetic number, because the mean of its divisors is an integer number (8284324).

Almost surely, 2^28995127 is an apocalyptic number.

28995127 is a deficient number, since it is larger than the sum of its proper divisors (4142169).

28995127 is an equidigital number, since it uses as much as digits as its factorization.

28995127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4142168.

The product of its digits is 90720, while the sum is 43.

The square root of 28995127 is about 5384.7123414348. The cubic root of 28995127 is about 307.2144730990.

The spelling of 28995127 in words is "twenty-eight million, nine hundred ninety-five thousand, one hundred twenty-seven".