89279169 has 16 divisors (see below), whose sum is σ = 141960192. Its totient is φ = 48798288.

The previous prime is 89279147. The next prime is 89279171. The reversal of 89279169 is 96197298.

It is a happy number.

It is not a de Polignac number, because 89279169 - 2¹¹ = 89277121 is a prime.

It is a super-2 number, since 2×89279169² = 15941540034661122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89279129) 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 15 ways as a sum of consecutive naturals, for example, 91939 + ... + 92904.

It is an arithmetic number, because the mean of its divisors is an integer number (8872512).

Almost surely, 2^89279169 is an apocalyptic number.

It is an amenable number.

89279169 is a deficient number, since it is larger than the sum of its proper divisors (52681023).

89279169 is a wasteful number, since it uses less digits than its factorization.

89279169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184876.

The product of its digits is 489888, while the sum is 51.

The square root of 89279169 is about 9448.7654749179. The cubic root of 89279169 is about 446.9408456872.

The spelling of 89279169 in words is "eighty-nine million, two hundred seventy-nine thousand, one hundred sixty-nine".