8881969 has 2 divisors, whose sum is σ = 8881970. Its totient is φ = 8881968.

The previous prime is 8881921. The next prime is 8881991. The reversal of 8881969 is 9691888.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8410000 + 471969 = 2900^2 + 687^2 .

It is a cyclic number.

It is not a de Polignac number, because 8881969 - 2¹⁵ = 8849201 is a prime.

It is a super-2 number, since 2×8881969² = 157778746633922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8881909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4440984 + 4440985.

It is an arithmetic number, because the mean of its divisors is an integer number (4440985).

Almost surely, 2^8881969 is an apocalyptic number.

It is an amenable number.

8881969 is a deficient number, since it is larger than the sum of its proper divisors (1).

8881969 is an equidigital number, since it uses as much as digits as its factorization.

8881969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 49.

The square root of 8881969 is about 2980.2632434065. The cubic root of 8881969 is about 207.0950655160.

It can be divided in two parts, 88819 and 69, that added together give a palindrome (88888).

The spelling of 8881969 in words is "eight million, eight hundred eighty-one thousand, nine hundred sixty-nine".