28026058 has 4 divisors (see below), whose sum is σ = 42039090. Its totient is φ = 14013028.

The previous prime is 28026017. The next prime is 28026073. The reversal of 28026058 is 85062082.

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., 16621929 + 11404129 = 4077^2 + 3377^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7006513 + ... + 7006516.

Almost surely, 2^28026058 is an apocalyptic number.

28026058 is a deficient number, since it is larger than the sum of its proper divisors (14013032).

28026058 is a wasteful number, since it uses less digits than its factorization.

28026058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14013031.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 28026058 is about 5293.9642990863. The cubic root of 28026058 is about 303.7530673086.

The spelling of 28026058 in words is "twenty-eight million, twenty-six thousand, fifty-eight".