89441729 has 6 divisors (see below), whose sum is σ = 96851286. Its totient is φ = 82561440.

The previous prime is 89441689. The next prime is 89441747. The reversal of 89441729 is 92714498.

It can be written as a sum of positive squares in 3 ways, for example, as 3323329 + 86118400 = 1823^2 + 9280^2 .

It is not a de Polignac number, because 89441729 - 2¹² = 89437633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 89441729.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89431729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 264452 + ... + 264789.

It is an arithmetic number, because the mean of its divisors is an integer number (16141881).

Almost surely, 2^89441729 is an apocalyptic number.

It is an amenable number.

89441729 is a deficient number, since it is larger than the sum of its proper divisors (7409557).

89441729 is a wasteful number, since it uses less digits than its factorization.

89441729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529267 (or 529254 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 89441729 is about 9457.3637447229. The cubic root of 89441729 is about 447.2119453272.

The spelling of 89441729 in words is "eighty-nine million, four hundred forty-one thousand, seven hundred twenty-nine".