28068958 has 4 divisors (see below), whose sum is σ = 42103440. Its totient is φ = 14034478.

The previous prime is 28068949. The next prime is 28068961. The reversal of 28068958 is 85986082.

It is a happy number.

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

It is a congruent number.

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, 7017238 + ... + 7017241.

It is an arithmetic number, because the mean of its divisors is an integer number (10525860).

Almost surely, 2^28068958 is an apocalyptic number.

28068958 is a deficient number, since it is larger than the sum of its proper divisors (14034482).

28068958 is a wasteful number, since it uses less digits than its factorization.

28068958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14034481.

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 28068958 is about 5298.0145337664. The cubic root of 28068958 is about 303.9079750888.

The spelling of 28068958 in words is "twenty-eight million, sixty-eight thousand, nine hundred fifty-eight".