800121072 has 40 divisors (see below), whose sum is σ = 2105985744. Its totient is φ = 261673984.

The previous prime is 800121071. The next prime is 800121131. The reversal of 800121072 is 270121008.

800121072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800121071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154713 + ... + 159800.

Almost surely, 2^800121072 is an apocalyptic number.

It is an amenable number.

800121072 is an abundant number, since it is smaller than the sum of its proper divisors (1305864672).

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

800121072 is a wasteful number, since it uses less digits than its factorization.

800121072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314577 (or 314571 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 800121072 is about 28286.4114372962. The cubic root of 800121072 is about 928.3645948972.

The spelling of 800121072 in words is "eight hundred million, one hundred twenty-one thousand, seventy-two".