89968447 has 2 divisors, whose sum is σ = 89968448. Its totient is φ = 89968446.

The previous prime is 89968441. The next prime is 89968457. The reversal of 89968447 is 74486998.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89968447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89968441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44984223 + 44984224.

It is an arithmetic number, because the mean of its divisors is an integer number (44984224).

Almost surely, 2^89968447 is an apocalyptic number.

89968447 is a deficient number, since it is larger than the sum of its proper divisors (1).

89968447 is an equidigital number, since it uses as much as digits as its factorization.

89968447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 55.

The square root of 89968447 is about 9485.1698456064. The cubic root of 89968447 is about 448.0880975106.

The spelling of 89968447 in words is "eighty-nine million, nine hundred sixty-eight thousand, four hundred forty-seven".