165984827 has 2 divisors, whose sum is σ = 165984828. Its totient is φ = 165984826.

The previous prime is 165984803. The next prime is 165984887. The reversal of 165984827 is 728489561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165984827 - 2¹⁰ = 165983803 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (165984887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82992413 + 82992414.

It is an arithmetic number, because the mean of its divisors is an integer number (82992414).

Almost surely, 2^165984827 is an apocalyptic number.

165984827 is a deficient number, since it is larger than the sum of its proper divisors (1).

165984827 is an equidigital number, since it uses as much as digits as its factorization.

165984827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 50.

The square root of 165984827 is about 12883.5098866730. The cubic root of 165984827 is about 549.5697207695.

The spelling of 165984827 in words is "one hundred sixty-five million, nine hundred eighty-four thousand, eight hundred twenty-seven".