18828827 has 2 divisors, whose sum is σ = 18828828. Its totient is φ = 18828826.

The previous prime is 18828787. The next prime is 18828841. The reversal of 18828827 is 72882881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18828827 - 2⁶ = 18828763 is a prime.

It is not a weakly prime, because it can be changed into another prime (18828127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9414413 + 9414414.

It is an arithmetic number, because the mean of its divisors is an integer number (9414414).

Almost surely, 2^18828827 is an apocalyptic number.

18828827 is a deficient number, since it is larger than the sum of its proper divisors (1).

18828827 is an equidigital number, since it uses as much as digits as its factorization.

18828827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 114688, while the sum is 44.

The square root of 18828827 is about 4339.2196303022. The cubic root of 18828827 is about 266.0364159539.

The spelling of 18828827 in words is "eighteen million, eight hundred twenty-eight thousand, eight hundred twenty-seven".