28534517 has 16 divisors (see below), whose sum is σ = 33130944. Its totient is φ = 24288000.

The previous prime is 28534507. The next prime is 28534549. The reversal of 28534517 is 71543582.

It is a happy number.

It is not a de Polignac number, because 28534517 - 2⁴ = 28534501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28534507) 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, 61667 + ... + 62127.

It is an arithmetic number, because the mean of its divisors is an integer number (2070684).

Almost surely, 2^28534517 is an apocalyptic number.

It is an amenable number.

28534517 is a deficient number, since it is larger than the sum of its proper divisors (4596427).

28534517 is a wasteful number, since it uses less digits than its factorization.

28534517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820.

The product of its digits is 33600, while the sum is 35.

The square root of 28534517 is about 5341.7709610203. The cubic root of 28534517 is about 305.5790022681.

The spelling of 28534517 in words is "twenty-eight million, five hundred thirty-four thousand, five hundred seventeen".