28001067 has 8 divisors (see below), whose sum is σ = 37490640. Its totient is φ = 18589440.

The previous prime is 28001063. The next prime is 28001069. The reversal of 28001067 is 76010082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28001067 - 2² = 28001063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28001063) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 18642 + ... + 20087.

It is an arithmetic number, because the mean of its divisors is an integer number (4686330).

Almost surely, 2^28001067 is an apocalyptic number.

28001067 is a deficient number, since it is larger than the sum of its proper divisors (9489573).

28001067 is a wasteful number, since it uses less digits than its factorization.

28001067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38973.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 28001067 is about 5291.6034431919. The cubic root of 28001067 is about 303.6627543296.

The spelling of 28001067 in words is "twenty-eight million, one thousand, sixty-seven".