806538 has 16 divisors (see below), whose sum is σ = 1622880. Its totient is φ = 267216.

The previous prime is 806521. The next prime is 806543. The reversal of 806538 is 835608.

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, 1081 + ... + 1667.

It is an arithmetic number, because the mean of its divisors is an integer number (101430).

2⁸⁰⁶⁵³⁸ is an apocalyptic number.

806538 is an abundant number, since it is smaller than the sum of its proper divisors (816342).

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

806538 is a wasteful number, since it uses less digits than its factorization.

806538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 806538 is about 898.0746071458. The cubic root of 806538 is about 93.0839801024.

The spelling of 806538 in words is "eight hundred six thousand, five hundred thirty-eight".