89279 has 4 divisors (see below), whose sum is σ = 90576. Its totient is φ = 87984.

The previous prime is 89273. The next prime is 89293. The reversal of 89279 is 97298.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97298 = 2 ⋅48649.

It is a cyclic number.

It is not a de Polignac number, because 89279 - 2¹⁶ = 23743 is a prime.

It is a Duffinian number.

Its product of digits (9072) is a multiple of the sum of its prime divisors (1296).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539 + ... + 684.

It is an arithmetic number, because the mean of its divisors is an integer number (22644).

2⁸⁹²⁷⁹ is an apocalyptic number.

89279 is a deficient number, since it is larger than the sum of its proper divisors (1297).

89279 is a wasteful number, since it uses less digits than its factorization.

89279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296.

The product of its digits is 9072, while the sum is 35.

The square root of 89279 is about 298.7959169734. The cubic root of 89279 is about 44.6940563676.

The spelling of 89279 in words is "eighty-nine thousand, two hundred seventy-nine".