89288669 has 2 divisors, whose sum is σ = 89288670. Its totient is φ = 89288668.

The previous prime is 89288621. The next prime is 89288671. The reversal of 89288669 is 96688298.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45225625 + 44063044 = 6725^2 + 6638^2 .

It is a cyclic number.

It is not a de Polignac number, because 89288669 - 2¹⁶ = 89223133 is a prime.

It is a super-2 number, since 2×89288669² = 15944932823583122, which contains 22 as substring.

Together with 89288671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89288609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44644334 + 44644335.

It is an arithmetic number, because the mean of its divisors is an integer number (44644335).

Almost surely, 2^89288669 is an apocalyptic number.

It is an amenable number.

89288669 is a deficient number, since it is larger than the sum of its proper divisors (1).

89288669 is an equidigital number, since it uses as much as digits as its factorization.

89288669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 56.

The square root of 89288669 is about 9449.2681727211. The cubic root of 89288669 is about 446.9566977891.

The spelling of 89288669 in words is "eighty-nine million, two hundred eighty-eight thousand, six hundred sixty-nine".