8611969 has 2 divisors, whose sum is σ = 8611970. Its totient is φ = 8611968.

The previous prime is 8611961. The next prime is 8611987. The reversal of 8611969 is 9691168.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6890625 + 1721344 = 2625^2 + 1312^2 .

It is a cyclic number.

It is not a de Polignac number, because 8611969 - 2³ = 8611961 is a prime.

It is a super-2 number, since 2×8611969² = 148332020113922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8611961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4305984 + 4305985.

It is an arithmetic number, because the mean of its divisors is an integer number (4305985).

Almost surely, 2^8611969 is an apocalyptic number.

It is an amenable number.

8611969 is a deficient number, since it is larger than the sum of its proper divisors (1).

8611969 is an equidigital number, since it uses as much as digits as its factorization.

8611969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 40.

The square root of 8611969 is about 2934.6156477467. The cubic root of 8611969 is about 204.9749642240.

The spelling of 8611969 in words is "eight million, six hundred eleven thousand, nine hundred sixty-nine".