89837 has 4 divisors (see below), whose sum is σ = 98016. Its totient is φ = 81660.

The previous prime is 89833. The next prime is 89839. The reversal of 89837 is 73898.

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.

It is a cyclic number.

It is not a de Polignac number, because 89837 - 2² = 89833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89797 and 89806.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 89837.

It is not an unprimeable number, because it can be changed into a prime (89833) 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, 4073 + ... + 4094.

It is an arithmetic number, because the mean of its divisors is an integer number (24504).

2⁸⁹⁸³⁷ is an apocalyptic number.

It is an amenable number.

89837 is a deficient number, since it is larger than the sum of its proper divisors (8179).

89837 is a wasteful number, since it uses less digits than its factorization.

89837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8178.

The product of its digits is 12096, while the sum is 35.

The square root of 89837 is about 299.7282102172. The cubic root of 89837 is about 44.7869767098.

The spelling of 89837 in words is "eighty-nine thousand, eight hundred thirty-seven".