83945 has 8 divisors (see below), whose sum is σ = 102336. Its totient is φ = 66096.

The previous prime is 83939. The next prime is 83969. The reversal of 83945 is 54938.

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 83945 - 2⁸ = 83689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434 + ... + 596.

It is an arithmetic number, because the mean of its divisors is an integer number (12792).

2⁸³⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

83945 is a deficient number, since it is larger than the sum of its proper divisors (18391).

83945 is a wasteful number, since it uses less digits than its factorization.

83945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271.

The product of its digits is 4320, while the sum is 29.

The square root of 83945 is about 289.7326353727. The cubic root of 83945 is about 43.7856308376.

The spelling of 83945 in words is "eighty-three thousand, nine hundred forty-five".