28254319 has 2 divisors, whose sum is σ = 28254320. Its totient is φ = 28254318.

The previous prime is 28254307. The next prime is 28254329. The reversal of 28254319 is 91345282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28254319 - 2⁹ = 28253807 is a prime.

It is a super-2 number, since 2×28254319² = 1596613084307522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28254329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14127159 + 14127160.

It is an arithmetic number, because the mean of its divisors is an integer number (14127160).

Almost surely, 2^28254319 is an apocalyptic number.

28254319 is a deficient number, since it is larger than the sum of its proper divisors (1).

28254319 is an equidigital number, since it uses as much as digits as its factorization.

28254319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 28254319 is about 5315.4791881824. The cubic root of 28254319 is about 304.5754875341.

The spelling of 28254319 in words is "twenty-eight million, two hundred fifty-four thousand, three hundred nineteen".