28941527 has 4 divisors (see below), whose sum is σ = 28953720. Its totient is φ = 28929336.

The previous prime is 28941499. The next prime is 28941529. The reversal of 28941527 is 72514982.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28941527 - 2¹⁸ = 28679383 is a prime.

It is a super-2 number, since 2×28941527² = 1675223970183458, 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 (28941529) 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, 1253 + ... + 7710.

It is an arithmetic number, because the mean of its divisors is an integer number (7238430).

Almost surely, 2^28941527 is an apocalyptic number.

28941527 is a deficient number, since it is larger than the sum of its proper divisors (12193).

28941527 is an equidigital number, since it uses as much as digits as its factorization.

28941527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12192.

The product of its digits is 40320, while the sum is 38.

The square root of 28941527 is about 5379.7329859390. The cubic root of 28941527 is about 307.0250521560.

The spelling of 28941527 in words is "twenty-eight million, nine hundred forty-one thousand, five hundred twenty-seven".