8945969 has 2 divisors, whose sum is σ = 8945970. Its totient is φ = 8945968.

The previous prime is 8945953. The next prime is 8945983. The reversal of 8945969 is 9695498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8439025 + 506944 = 2905^2 + 712^2 .

It is a cyclic number.

It is not a de Polignac number, because 8945969 - 2⁴ = 8945953 is a prime.

It is a super-2 number, since 2×8945969² = 160060722697922, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8945939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4472984 + 4472985.

It is an arithmetic number, because the mean of its divisors is an integer number (4472985).

Almost surely, 2^8945969 is an apocalyptic number.

It is an amenable number.

8945969 is a deficient number, since it is larger than the sum of its proper divisors (1).

8945969 is an equidigital number, since it uses as much as digits as its factorization.

8945969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 50.

The square root of 8945969 is about 2990.9812771062. The cubic root of 8945969 is about 207.5912909376.

The spelling of 8945969 in words is "eight million, nine hundred forty-five thousand, nine hundred sixty-nine".