28890079 has 2 divisors, whose sum is σ = 28890080. Its totient is φ = 28890078.

The previous prime is 28890067. The next prime is 28890091. The reversal of 28890079 is 97009882.

It is a balanced prime because it is at equal distance from previous prime (28890067) and next prime (28890091).

It is a cyclic number.

It is not a de Polignac number, because 28890079 - 2⁷ = 28889951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28890479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14445039 + 14445040.

It is an arithmetic number, because the mean of its divisors is an integer number (14445040).

Almost surely, 2^28890079 is an apocalyptic number.

28890079 is a deficient number, since it is larger than the sum of its proper divisors (1).

28890079 is an equidigital number, since it uses as much as digits as its factorization.

28890079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 28890079 is about 5374.9492090624. The cubic root of 28890079 is about 306.8430162188.

The spelling of 28890079 in words is "twenty-eight million, eight hundred ninety thousand, seventy-nine".