89144393 has 8 divisors (see below), whose sum is σ = 96704328. Its totient is φ = 81684864.

The previous prime is 89144369. The next prime is 89144401. The reversal of 89144393 is 39344198.

It can be written as a sum of positive squares in 4 ways, for example, as 24631369 + 64513024 = 4963^2 + 8032^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89144393 - 2¹² = 89140297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89144393.

It is not an unprimeable number, because it can be changed into a prime (89144323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23246 + ... + 26807.

It is an arithmetic number, because the mean of its divisors is an integer number (12088041).

Almost surely, 2^89144393 is an apocalyptic number.

It is an amenable number.

89144393 is a deficient number, since it is larger than the sum of its proper divisors (7559935).

89144393 is a wasteful number, since it uses less digits than its factorization.

89144393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50203.

The product of its digits is 93312, while the sum is 41.

The square root of 89144393 is about 9441.6308442980. The cubic root of 89144393 is about 446.7158315106.

The spelling of 89144393 in words is "eighty-nine million, one hundred forty-four thousand, three hundred ninety-three".