28916519 has 2 divisors, whose sum is σ = 28916520. Its totient is φ = 28916518.

The previous prime is 28916483. The next prime is 28916527. The reversal of 28916519 is 91561982.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28916519 - 2⁸ = 28916263 is a prime.

It is a super-2 number, since 2×28916519² = 1672330142154722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28916539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14458259 + 14458260.

It is an arithmetic number, because the mean of its divisors is an integer number (14458260).

Almost surely, 2^28916519 is an apocalyptic number.

28916519 is a deficient number, since it is larger than the sum of its proper divisors (1).

28916519 is an equidigital number, since it uses as much as digits as its factorization.

28916519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 41.

The square root of 28916519 is about 5377.4082047023. The cubic root of 28916519 is about 306.9365945442.

The spelling of 28916519 in words is "twenty-eight million, nine hundred sixteen thousand, five hundred nineteen".