1163969 has 2 divisors, whose sum is σ = 1163970. Its totient is φ = 1163968.

The previous prime is 1163947. The next prime is 1163971. The reversal of 1163969 is 9693611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 82369 = 1040^2 + 287^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163969 - 2⁸ = 1163713 is a prime.

It is a super-2 number, since 2×1163969² = 2709647665922, which contains 22 as substring.

Together with 1163971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1163989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581984 + 581985.

It is an arithmetic number, because the mean of its divisors is an integer number (581985).

2^1163969 is an apocalyptic number.

It is an amenable number.

1163969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163969 is an equidigital number, since it uses as much as digits as its factorization.

1163969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 35.

The square root of 1163969 is about 1078.8739500053. The cubic root of 1163969 is about 105.1914571848.

The spelling of 1163969 in words is "one million, one hundred sixty-three thousand, nine hundred sixty-nine".