89163505 has 8 divisors (see below), whose sum is σ = 107091432. Its totient is φ = 71267328.

The previous prime is 89163499. The next prime is 89163509. The reversal of 89163505 is 50536198.

It can be written as a sum of positive squares in 4 ways, for example, as 13890529 + 75272976 = 3727^2 + 8676^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89163505 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89163509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242 + ... + 13411.

It is an arithmetic number, because the mean of its divisors is an integer number (13386429).

Almost surely, 2^89163505 is an apocalyptic number.

It is an amenable number.

89163505 is a deficient number, since it is larger than the sum of its proper divisors (17927927).

89163505 is a wasteful number, since it uses less digits than its factorization.

89163505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15875.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 89163505 is about 9442.6429033401. The cubic root of 89163505 is about 446.7477535890.

It can be divided in two parts, 8916 and 3505, that added together give a palindrome (12421).

The spelling of 89163505 in words is "eighty-nine million, one hundred sixty-three thousand, five hundred five".