89291 has 4 divisors (see below), whose sum is σ = 92400. Its totient is φ = 86184.
The previous prime is 89273. The next prime is 89293. The reversal of 89291 is 19298.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19298 = 2 ⋅9649.
It is a cyclic number.
It is not a de Polignac number, because 89291 - 26 = 89227 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 3079 = 89291 / (8 + 9 + 2 + 9 + 1).
It is a Duffinian number.
It is a plaindrome in base 14.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (89293) 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, 1511 + ... + 1568.
It is an arithmetic number, because the mean of its divisors is an integer number (23100).
289291 is an apocalyptic number.
89291 is a deficient number, since it is larger than the sum of its proper divisors (3109).
89291 is a wasteful number, since it uses less digits than its factorization.
89291 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3108.
The product of its digits is 1296, while the sum is 29.
The square root of 89291 is about 298.8159968944. The cubic root of 89291 is about 44.6960587222.
The spelling of 89291 in words is "eighty-nine thousand, two hundred ninety-one".
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