798555013 has 4 divisors (see below), whose sum is σ = 799113708. Its totient is φ = 797996320.

The previous prime is 798555007. The next prime is 798555041. The reversal of 798555013 is 310555897.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 551216484 + 247338529 = 23478^2 + 15727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-798555013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798555113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277198 + ... + 280063.

It is an arithmetic number, because the mean of its divisors is an integer number (199778427).

Almost surely, 2^798555013 is an apocalyptic number.

It is an amenable number.

798555013 is a deficient number, since it is larger than the sum of its proper divisors (558695).

798555013 is a wasteful number, since it uses less digits than its factorization.

798555013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558694.

The product of its (nonzero) digits is 189000, while the sum is 43.

The square root of 798555013 is about 28258.7156997624. The cubic root of 798555013 is about 927.7585102443.

The spelling of 798555013 in words is "seven hundred ninety-eight million, five hundred fifty-five thousand, thirteen".