89311249 has 2 divisors, whose sum is σ = 89311250. Its totient is φ = 89311248.

The previous prime is 89311247. The next prime is 89311283. The reversal of 89311249 is 94211398.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69889600 + 19421649 = 8360^2 + 4407^2 .

It is a cyclic number.

It is not a de Polignac number, because 89311249 - 2¹ = 89311247 is a prime.

Together with 89311247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (89311241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44655624 + 44655625.

It is an arithmetic number, because the mean of its divisors is an integer number (44655625).

Almost surely, 2^89311249 is an apocalyptic number.

It is an amenable number.

89311249 is a deficient number, since it is larger than the sum of its proper divisors (1).

89311249 is an equidigital number, since it uses as much as digits as its factorization.

89311249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 37.

The square root of 89311249 is about 9450.4628987156. The cubic root of 89311249 is about 446.9943712204.

The spelling of 89311249 in words is "eighty-nine million, three hundred eleven thousand, two hundred forty-nine".