89661113 has 2 divisors, whose sum is σ = 89661114. Its totient is φ = 89661112.

The previous prime is 89661109. The next prime is 89661151. The reversal of 89661113 is 31116698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88585744 + 1075369 = 9412^2 + 1037^2 .

It is a cyclic number.

It is not a de Polignac number, because 89661113 - 2² = 89661109 is a prime.

It is not a weakly prime, because it can be changed into another prime (89661713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44830556 + 44830557.

It is an arithmetic number, because the mean of its divisors is an integer number (44830557).

Almost surely, 2^89661113 is an apocalyptic number.

It is an amenable number.

89661113 is a deficient number, since it is larger than the sum of its proper divisors (1).

89661113 is an equidigital number, since it uses as much as digits as its factorization.

89661113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 35.

The square root of 89661113 is about 9468.9552221985. The cubic root of 89661113 is about 447.5772894810.

The spelling of 89661113 in words is "eighty-nine million, six hundred sixty-one thousand, one hundred thirteen".