89719811 has 2 divisors, whose sum is σ = 89719812. Its totient is φ = 89719810.

The previous prime is 89719807. The next prime is 89719841. The reversal of 89719811 is 11891798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89719811 - 2² = 89719807 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89719841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44859905 + 44859906.

It is an arithmetic number, because the mean of its divisors is an integer number (44859906).

Almost surely, 2^89719811 is an apocalyptic number.

89719811 is a deficient number, since it is larger than the sum of its proper divisors (1).

89719811 is an equidigital number, since it uses as much as digits as its factorization.

89719811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 44.

The square root of 89719811 is about 9472.0542122604. The cubic root of 89719811 is about 447.6749392493.

The spelling of 89719811 in words is "eighty-nine million, seven hundred nineteen thousand, eight hundred eleven".