800856146 has 4 divisors (see below), whose sum is σ = 1201284222. Its totient is φ = 400428072.

The previous prime is 800856143. The next prime is 800856191. The reversal of 800856146 is 641658008.

800856146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 649689121 + 151167025 = 25489^2 + 12295^2 .

It is not an unprimeable number, because it can be changed into a prime (800856143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200214035 + ... + 200214038.

Almost surely, 2^800856146 is an apocalyptic number.

800856146 is a deficient number, since it is larger than the sum of its proper divisors (400428076).

800856146 is a wasteful number, since it uses less digits than its factorization.

800856146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400428075.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 800856146 is about 28299.4018664706. The cubic root of 800856146 is about 928.6488051362.

The spelling of 800856146 in words is "eight hundred million, eight hundred fifty-six thousand, one hundred forty-six".