28054079 has 4 divisors (see below), whose sum is σ = 28101360. Its totient is φ = 28006800.

The previous prime is 28054067. The next prime is 28054111. The reversal of 28054079 is 97045082.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97045082 = 2 ⋅48522541.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28054079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28054379) 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 3 ways as a sum of consecutive naturals, for example, 22739 + ... + 23940.

It is an arithmetic number, because the mean of its divisors is an integer number (7025340).

Almost surely, 2^28054079 is an apocalyptic number.

28054079 is a deficient number, since it is larger than the sum of its proper divisors (47281).

28054079 is an equidigital number, since it uses as much as digits as its factorization.

28054079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47280.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 28054079 is about 5296.6101423458. The cubic root of 28054079 is about 303.8542663383.

The spelling of 28054079 in words is "twenty-eight million, fifty-four thousand, seventy-nine".