89965 has 8 divisors (see below), whose sum is σ = 113760. Its totient is φ = 68112.

The previous prime is 89963. The next prime is 89977. The reversal of 89965 is 56998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89965 - 2¹ = 89963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379 + ... + 568.

It is an arithmetic number, because the mean of its divisors is an integer number (14220).

2⁸⁹⁹⁶⁵ is an apocalyptic number.

89965 is the 190-th heptagonal number.

It is an amenable number.

89965 is a deficient number, since it is larger than the sum of its proper divisors (23795).

89965 is a wasteful number, since it uses less digits than its factorization.

89965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971.

The product of its digits is 19440, while the sum is 37.

The square root of 89965 is about 299.9416609943. The cubic root of 89965 is about 44.8082374840.

The spelling of 89965 in words is "eighty-nine thousand, nine hundred sixty-five".