89661713 has 2 divisors, whose sum is σ = 89661714. Its totient is φ = 89661712.

The previous prime is 89661709. The next prime is 89661731. The reversal of 89661713 is 31716698.

Together with next prime (89661731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69022864 + 20638849 = 8308^2 + 4543^2 .

It is a cyclic number.

It is not a de Polignac number, because 89661713 - 2² = 89661709 is a prime.

It is equal to p_5198585 and since 89661713 and 5198585 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (89661763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44830856 + 44830857.

It is an arithmetic number, because the mean of its divisors is an integer number (44830857).

Almost surely, 2^89661713 is an apocalyptic number.

It is an amenable number.

89661713 is a deficient number, since it is larger than the sum of its proper divisors (1).

89661713 is an equidigital number, since it uses as much as digits as its factorization.

89661713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 89661713 is about 9468.9869046271. The cubic root of 89661713 is about 447.5782878543.

The spelling of 89661713 in words is "eighty-nine million, six hundred sixty-one thousand, seven hundred thirteen".