89719723 has 2 divisors, whose sum is σ = 89719724. Its totient is φ = 89719722.

The previous prime is 89719687. The next prime is 89719733. The reversal of 89719723 is 32791798.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89719723 is a prime.

It is not a weakly prime, because it can be changed into another prime (89719733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44859861 + 44859862.

It is an arithmetic number, because the mean of its divisors is an integer number (44859862).

Almost surely, 2^89719723 is an apocalyptic number.

89719723 is a deficient number, since it is larger than the sum of its proper divisors (1).

89719723 is an equidigital number, since it uses as much as digits as its factorization.

89719723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 46.

The square root of 89719723 is about 9472.0495670156. The cubic root of 89719723 is about 447.6747928847.

The spelling of 89719723 in words is "eighty-nine million, seven hundred nineteen thousand, seven hundred twenty-three".