800398872 has 144 divisors (see below), whose sum is σ = 2682941040. Its totient is φ = 211071744.

The previous prime is 800398871. The next prime is 800398909. The reversal of 800398872 is 278893008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800398871) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 80478 + ... + 89874.

It is an arithmetic number, because the mean of its divisors is an integer number (18631535).

Almost surely, 2^800398872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 800398872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1341470520).

800398872 is an abundant number, since it is smaller than the sum of its proper divisors (1882542168).

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

800398872 is a wasteful number, since it uses less digits than its factorization.

800398872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9442 (or 9422 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 800398872 is about 28291.3214961762. The cubic root of 800398872 is about 928.4720244067.

The spelling of 800398872 in words is "eight hundred million, three hundred ninety-eight thousand, eight hundred seventy-two".