28707827 has 2 divisors, whose sum is σ = 28707828. Its totient is φ = 28707826.

The previous prime is 28707823. The next prime is 28707857. The reversal of 28707827 is 72870782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28707827 - 2² = 28707823 is a prime.

It is not a weakly prime, because it can be changed into another prime (28707823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14353913 + 14353914.

It is an arithmetic number, because the mean of its divisors is an integer number (14353914).

Almost surely, 2^28707827 is an apocalyptic number.

28707827 is a deficient number, since it is larger than the sum of its proper divisors (1).

28707827 is an equidigital number, since it uses as much as digits as its factorization.

28707827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87808, while the sum is 41.

The square root of 28707827 is about 5357.9685516061. The cubic root of 28707827 is about 306.1964186699.

The spelling of 28707827 in words is "twenty-eight million, seven hundred seven thousand, eight hundred twenty-seven".