89863789 has 2 divisors, whose sum is σ = 89863790. Its totient is φ = 89863788.

The previous prime is 89863757. The next prime is 89863799. The reversal of 89863789 is 98736898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78907689 + 10956100 = 8883^2 + 3310^2 .

It is a cyclic number.

It is not a de Polignac number, because 89863789 - 2⁵ = 89863757 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89863799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44931894 + 44931895.

It is an arithmetic number, because the mean of its divisors is an integer number (44931895).

Almost surely, 2^89863789 is an apocalyptic number.

It is an amenable number.

89863789 is a deficient number, since it is larger than the sum of its proper divisors (1).

89863789 is an equidigital number, since it uses as much as digits as its factorization.

89863789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 58.

The square root of 89863789 is about 9479.6513121528. The cubic root of 89863789 is about 447.9142802752.

The spelling of 89863789 in words is "eighty-nine million, eight hundred sixty-three thousand, seven hundred eighty-nine".