80634 has 16 divisors (see below), whose sum is σ = 164160. Its totient is φ = 26400.

The previous prime is 80629. The next prime is 80651. The reversal of 80634 is 43608.

It is a self number, because there is not a number n which added to its sum of digits gives 80634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459 + ... + 609.

It is an arithmetic number, because the mean of its divisors is an integer number (10260).

2⁸⁰⁶³⁴ is an apocalyptic number.

80634 is an abundant number, since it is smaller than the sum of its proper divisors (83526).

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 (82080).

80634 is a wasteful number, since it uses less digits than its factorization.

80634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 80634 is about 283.9612649641. The cubic root of 80634 is about 43.2022203934.

The spelling of 80634 in words is "eighty thousand, six hundred thirty-four".