Search a number
-
+
89497 = 312887
BaseRepresentation
bin10101110110011001
311112202201
4111312121
510330442
61530201
7521632
oct256631
9145681
1089497
1161271
1243961
1331975
1424889
151b7b7
hex15d99

89497 has 4 divisors (see below), whose sum is σ = 92416. Its totient is φ = 86580.

The previous prime is 89491. The next prime is 89501. The reversal of 89497 is 79498.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79498 = 239749.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-89497 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 83 + 92 + 48 + 94 + 75 .

It is a Duffinian number.

89497 is a lucky number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (89491) 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, 1413 + ... + 1474.

It is an arithmetic number, because the mean of its divisors is an integer number (23104).

289497 is an apocalyptic number.

It is an amenable number.

89497 is a deficient number, since it is larger than the sum of its proper divisors (2919).

89497 is a wasteful number, since it uses less digits than its factorization.

89497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918.

The product of its digits is 18144, while the sum is 37.

The square root of 89497 is about 299.1604920440. The cubic root of 89497 is about 44.7304045372.

Subtracting from 89497 its reverse (79498), we obtain a palindrome (9999).

The spelling of 89497 in words is "eighty-nine thousand, four hundred ninety-seven".

Divisors: 1 31 2887 89497