798173690 has 8 divisors (see below), whose sum is σ = 1436712660. Its totient is φ = 319269472.

The previous prime is 798173687. The next prime is 798173707. The reversal of 798173690 is 96371897.

It can be written as a sum of positive squares in 2 ways, for example, as 737068201 + 61105489 = 27149^2 + 7817^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×798173690² = 1274162478816432200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39908675 + ... + 39908694.

Almost surely, 2^798173690 is an apocalyptic number.

798173690 is a deficient number, since it is larger than the sum of its proper divisors (638538970).

798173690 is a wasteful number, since it uses less digits than its factorization.

798173690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79817376.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 798173690 is about 28251.9678960599. The cubic root of 798173690 is about 927.6108134759.

The spelling of 798173690 in words is "seven hundred ninety-eight million, one hundred seventy-three thousand, six hundred ninety".