89664347 has 2 divisors, whose sum is σ = 89664348. Its totient is φ = 89664346.

The previous prime is 89664299. The next prime is 89664349. The reversal of 89664347 is 74346698.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89664347 - 2¹⁶ = 89598811 is a prime.

Together with 89664349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89664349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44832173 + 44832174.

It is an arithmetic number, because the mean of its divisors is an integer number (44832174).

Almost surely, 2^89664347 is an apocalyptic number.

89664347 is a deficient number, since it is larger than the sum of its proper divisors (1).

89664347 is an equidigital number, since it uses as much as digits as its factorization.

89664347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 47.

The square root of 89664347 is about 9469.1259892347. The cubic root of 89664347 is about 447.5826706602.

The spelling of 89664347 in words is "eighty-nine million, six hundred sixty-four thousand, three hundred forty-seven".