28820527 has 2 divisors, whose sum is σ = 28820528. Its totient is φ = 28820526.

The previous prime is 28820513. The next prime is 28820531. The reversal of 28820527 is 72502882.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28820527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28820492 and 28820501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28820927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14410263 + 14410264.

It is an arithmetic number, because the mean of its divisors is an integer number (14410264).

Almost surely, 2^28820527 is an apocalyptic number.

28820527 is a deficient number, since it is larger than the sum of its proper divisors (1).

28820527 is an equidigital number, since it uses as much as digits as its factorization.

28820527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 28820527 is about 5368.4752956496. The cubic root of 28820527 is about 306.5965798928.

The spelling of 28820527 in words is "twenty-eight million, eight hundred twenty thousand, five hundred twenty-seven".