1662163 has 2 divisors, whose sum is σ = 1662164. Its totient is φ = 1662162.

The previous prime is 1662161. The next prime is 1662191. The reversal of 1662163 is 3612661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1662163 - 2¹ = 1662161 is a prime.

Together with 1662161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1662161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831081 + 831082.

It is an arithmetic number, because the mean of its divisors is an integer number (831082).

2^1662163 is an apocalyptic number.

1662163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1662163 is an equidigital number, since it uses as much as digits as its factorization.

1662163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 1662163 is about 1289.2490062048. The cubic root of 1662163 is about 118.4562200669.

The spelling of 1662163 in words is "one million, six hundred sixty-two thousand, one hundred sixty-three".