89289161 has 16 divisors (see below), whose sum is σ = 97952400. Its totient is φ = 80898048.

The previous prime is 89289149. The next prime is 89289163. The reversal of 89289161 is 16198298.

It can be written as a sum of positive squares in 8 ways, for example, as 4280761 + 85008400 = 2069^2 + 9220^2 .

It is a cyclic number.

It is not a de Polignac number, because 89289161 - 2¹⁰ = 89288137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89289163) 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 in 15 ways as a sum of consecutive naturals, for example, 264785 + ... + 265121.

It is an arithmetic number, because the mean of its divisors is an integer number (6122025).

Almost surely, 2^89289161 is an apocalyptic number.

It is an amenable number.

89289161 is a deficient number, since it is larger than the sum of its proper divisors (8663239).

89289161 is a wasteful number, since it uses less digits than its factorization.

89289161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668.

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

The square root of 89289161 is about 9449.2942064474. The cubic root of 89289161 is about 446.9575187304.

It can be divided in two parts, 89 and 289161, that multiplied together give a square (25735329 = 5073²).

The spelling of 89289161 in words is "eighty-nine million, two hundred eighty-nine thousand, one hundred sixty-one".