28719527 has 2 divisors, whose sum is σ = 28719528. Its totient is φ = 28719526.

The previous prime is 28719497. The next prime is 28719529. The reversal of 28719527 is 72591782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28719527 - 2¹⁶ = 28653991 is a prime.

It is a super-2 number, since 2×28719527² = 1649622462207458, which contains 22 as substring.

Together with 28719529, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28719529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14359763 + 14359764.

It is an arithmetic number, because the mean of its divisors is an integer number (14359764).

Almost surely, 2^28719527 is an apocalyptic number.

28719527 is a deficient number, since it is larger than the sum of its proper divisors (1).

28719527 is an equidigital number, since it uses as much as digits as its factorization.

28719527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 41.

The square root of 28719527 is about 5359.0602721000. The cubic root of 28719527 is about 306.2380102484.

The spelling of 28719527 in words is "twenty-eight million, seven hundred nineteen thousand, five hundred twenty-seven".