806654 has 4 divisors (see below), whose sum is σ = 1209984. Its totient is φ = 403326.

The previous prime is 806639. The next prime is 806657. The reversal of 806654 is 456608.

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 (806657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201662 + ... + 201665.

It is an arithmetic number, because the mean of its divisors is an integer number (302496).

2⁸⁰⁶⁶⁵⁴ is an apocalyptic number.

806654 is a deficient number, since it is larger than the sum of its proper divisors (403330).

806654 is a wasteful number, since it uses less digits than its factorization.

806654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403329.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 806654 is about 898.1391874314. The cubic root of 806654 is about 93.0884424770.

The spelling of 806654 in words is "eight hundred six thousand, six hundred fifty-four".