28620827 has 2 divisors, whose sum is σ = 28620828. Its totient is φ = 28620826.

The previous prime is 28620817. The next prime is 28620853. The reversal of 28620827 is 72802682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28620827 - 2⁴ = 28620811 is a prime.

It is not a weakly prime, because it can be changed into another prime (28620817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14310413 + 14310414.

It is an arithmetic number, because the mean of its divisors is an integer number (14310414).

Almost surely, 2^28620827 is an apocalyptic number.

28620827 is a deficient number, since it is larger than the sum of its proper divisors (1).

28620827 is an equidigital number, since it uses as much as digits as its factorization.

28620827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 28620827 is about 5349.8436425750. The cubic root of 28620827 is about 305.8867929590.

The spelling of 28620827 in words is "twenty-eight million, six hundred twenty thousand, eight hundred twenty-seven".