89892161 has 2 divisors, whose sum is σ = 89892162. Its totient is φ = 89892160.

The previous prime is 89892151. The next prime is 89892167. The reversal of 89892161 is 16129898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53217025 + 36675136 = 7295^2 + 6056^2 .

It is a cyclic number.

It is not a de Polignac number, because 89892161 - 2¹⁴ = 89875777 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (89892167) 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, 44946080 + 44946081.

It is an arithmetic number, because the mean of its divisors is an integer number (44946081).

Almost surely, 2^89892161 is an apocalyptic number.

It is an amenable number.

89892161 is a deficient number, since it is larger than the sum of its proper divisors (1).

89892161 is an equidigital number, since it uses as much as digits as its factorization.

89892161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 44.

The square root of 89892161 is about 9481.1476625987. The cubic root of 89892161 is about 447.9614141539.

The spelling of 89892161 in words is "eighty-nine million, eight hundred ninety-two thousand, one hundred sixty-one".