798128874 has 12 divisors (see below), whose sum is σ = 1729279266. Its totient is φ = 266042952.

The previous prime is 798128867. The next prime is 798128879. The reversal of 798128874 is 478821897.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 775232649 + 22896225 = 27843^2 + 4785^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 798128874.

It is not an unprimeable number, because it can be changed into a prime (798128879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22170229 + ... + 22170264.

Almost surely, 2^798128874 is an apocalyptic number.

798128874 is an abundant number, since it is smaller than the sum of its proper divisors (931150392).

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

798128874 is a wasteful number, since it uses less digits than its factorization.

798128874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44340501 (or 44340498 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 54.

The square root of 798128874 is about 28251.1747366371. The cubic root of 798128874 is about 927.5934519313.

The spelling of 798128874 in words is "seven hundred ninety-eight million, one hundred twenty-eight thousand, eight hundred seventy-four".