800444506 has 4 divisors (see below), whose sum is σ = 1200666762. Its totient is φ = 400222252.

The previous prime is 800444479. The next prime is 800444549. The reversal of 800444506 is 605444008.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 688275225 + 112169281 = 26235^2 + 10591^2 .

It is a super-2 number, since 2×800444506² = 1281422814371168072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200111125 + ... + 200111128.

Almost surely, 2^800444506 is an apocalyptic number.

800444506 is a deficient number, since it is larger than the sum of its proper divisors (400222256).

800444506 is a wasteful number, since it uses less digits than its factorization.

800444506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400222255.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 800444506 is about 28292.1279864205. The cubic root of 800444506 is about 928.4896693954.

The spelling of 800444506 in words is "eight hundred million, four hundred forty-four thousand, five hundred six".