84965 has 4 divisors (see below), whose sum is σ = 101964. Its totient is φ = 67968.

The previous prime is 84961. The next prime is 84967. The reversal of 84965 is 56948.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20449 + 64516 = 143^2 + 254^2 .

It is a cyclic number.

It is not a de Polignac number, because 84965 - 2² = 84961 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84961) 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, 8492 + ... + 8501.

It is an arithmetic number, because the mean of its divisors is an integer number (25491).

2⁸⁴⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

84965 is a deficient number, since it is larger than the sum of its proper divisors (16999).

84965 is a wasteful number, since it uses less digits than its factorization.

84965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16998.

The product of its digits is 8640, while the sum is 32.

The square root of 84965 is about 291.4875640572. The cubic root of 84965 is about 43.9622610288.

The spelling of 84965 in words is "eighty-four thousand, nine hundred sixty-five".