28531295 has 16 divisors (see below), whose sum is σ = 37218720. Its totient is φ = 20870784.

The previous prime is 28531291. The next prime is 28531297. The reversal of 28531295 is 59213582.

It is a cyclic number.

It is not a de Polignac number, because 28531295 - 2² = 28531291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28531291) 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, 5072 + ... + 9098.

It is an arithmetic number, because the mean of its divisors is an integer number (2326170).

Almost surely, 2^28531295 is an apocalyptic number.

28531295 is a deficient number, since it is larger than the sum of its proper divisors (8687425).

28531295 is a wasteful number, since it uses less digits than its factorization.

28531295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154.

The product of its digits is 21600, while the sum is 35.

The square root of 28531295 is about 5341.4693671311. The cubic root of 28531295 is about 305.5675002616.

The spelling of 28531295 in words is "twenty-eight million, five hundred thirty-one thousand, two hundred ninety-five".