28533058 has 4 divisors (see below), whose sum is σ = 42799590. Its totient is φ = 14266528.

The previous prime is 28533047. The next prime is 28533059. The reversal of 28533058 is 85033582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26553409 + 1979649 = 5153^2 + 1407^2 .

It is a super-3 number, since 3×28533058³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28533059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7133263 + ... + 7133266.

Almost surely, 2^28533058 is an apocalyptic number.

28533058 is a deficient number, since it is larger than the sum of its proper divisors (14266532).

28533058 is a wasteful number, since it uses less digits than its factorization.

28533058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14266531.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 28533058 is about 5341.6343940783. The cubic root of 28533058 is about 305.5737939869.

The spelling of 28533058 in words is "twenty-eight million, five hundred thirty-three thousand, fifty-eight".