89438161 has 2 divisors, whose sum is σ = 89438162. Its totient is φ = 89438160.

The previous prime is 89438143. The next prime is 89438177. The reversal of 89438161 is 16183498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87890625 + 1547536 = 9375^2 + 1244^2 .

It is a cyclic number.

It is not a de Polignac number, because 89438161 - 2¹³ = 89429969 is a 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 (89438561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44719080 + 44719081.

It is an arithmetic number, because the mean of its divisors is an integer number (44719081).

Almost surely, 2^89438161 is an apocalyptic number.

It is an amenable number.

89438161 is a deficient number, since it is larger than the sum of its proper divisors (1).

89438161 is an equidigital number, since it uses as much as digits as its factorization.

89438161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 40.

The square root of 89438161 is about 9457.1751067642. The cubic root of 89438161 is about 447.2059985376.

The spelling of 89438161 in words is "eighty-nine million, four hundred thirty-eight thousand, one hundred sixty-one".