800662 has 4 divisors (see below), whose sum is σ = 1200996. Its totient is φ = 400330.

The previous prime is 800659. The next prime is 800663. The reversal of 800662 is 266008.

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 (800663) by changing a digit.

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 as a sum of consecutive naturals, namely, 200164 + ... + 200167.

It is an arithmetic number, because the mean of its divisors is an integer number (300249).

2⁸⁰⁰⁶⁶² is an apocalyptic number.

800662 is a deficient number, since it is larger than the sum of its proper divisors (400334).

800662 is a wasteful number, since it uses less digits than its factorization.

800662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400333.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 800662 is about 894.7971837238. The cubic root of 800662 is about 92.8573757109.

The spelling of 800662 in words is "eight hundred thousand, six hundred sixty-two".