28658343 has 16 divisors (see below), whose sum is σ = 43787520. Its totient is φ = 16332096.

The previous prime is 28658317. The next prime is 28658381. The reversal of 28658343 is 34385682.

It is not a de Polignac number, because 28658343 - 2²⁴ = 11881127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28658543) 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, 7171 + ... + 10427.

It is an arithmetic number, because the mean of its divisors is an integer number (2736720).

Almost surely, 2^28658343 is an apocalyptic number.

28658343 is a deficient number, since it is larger than the sum of its proper divisors (15129177).

28658343 is a wasteful number, since it uses less digits than its factorization.

28658343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686.

The product of its digits is 138240, while the sum is 39.

The square root of 28658343 is about 5353.3487650255. The cubic root of 28658343 is about 306.0203860996.

The spelling of 28658343 in words is "twenty-eight million, six hundred fifty-eight thousand, three hundred forty-three".