80966 has 4 divisors (see below), whose sum is σ = 121452. Its totient is φ = 40482.

The previous prime is 80963. The next prime is 80989. The reversal of 80966 is 66908.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20240 + ... + 20243.

It is an arithmetic number, because the mean of its divisors is an integer number (30363).

2⁸⁰⁹⁶⁶ is an apocalyptic number.

80966 is a deficient number, since it is larger than the sum of its proper divisors (40486).

80966 is a wasteful number, since it uses less digits than its factorization.

80966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40485.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 80966 is about 284.5452512343. The cubic root of 80966 is about 43.2614323749.

The spelling of 80966 in words is "eighty thousand, nine hundred sixty-six".