1163663 has 2 divisors, whose sum is σ = 1163664. Its totient is φ = 1163662.

The previous prime is 1163653. The next prime is 1163671. The reversal of 1163663 is 3663611.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1163663 is a prime.

It is a super-2 number, since 2×1163663² = 2708223155138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1163653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581831 + 581832.

It is an arithmetic number, because the mean of its divisors is an integer number (581832).

2^1163663 is an apocalyptic number.

1163663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163663 is an equidigital number, since it uses as much as digits as its factorization.

1163663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 26.

The square root of 1163663 is about 1078.7321261555. The cubic root of 1163663 is about 105.1822383233.

The spelling of 1163663 in words is "one million, one hundred sixty-three thousand, six hundred sixty-three".