80646 has 8 divisors (see below), whose sum is σ = 161304. Its totient is φ = 26880.

The previous prime is 80629. The next prime is 80651. The reversal of 80646 is 64608.

80646 is nontrivially palindromic in base 11.

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

80646 is an admirable number.

It is a congruent number.

It is an unprimeable number.

80646 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6715 + ... + 6726.

It is an arithmetic number, because the mean of its divisors is an integer number (20163).

2⁸⁰⁶⁴⁶ is an apocalyptic number.

80646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80652).

80646 is a wasteful number, since it uses less digits than its factorization.

80646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13446.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 80646 is about 283.9823938205. The cubic root of 80646 is about 43.2043634139.

It can be divided in two parts, 8064 and 6, that multiplied together give a palindrome (48384).

The spelling of 80646 in words is "eighty thousand, six hundred forty-six".