798198961 has 4 divisors (see below), whose sum is σ = 912227392. Its totient is φ = 684170532.

The previous prime is 798198941. The next prime is 798198967. The reversal of 798198961 is 169891897.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 798198961 - 2²⁷ = 663981233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 798198896 and 798198905.

It is not an unprimeable number, because it can be changed into a prime (798198967) 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, 57014205 + ... + 57014218.

It is an arithmetic number, because the mean of its divisors is an integer number (228056848).

Almost surely, 2^798198961 is an apocalyptic number.

It is an amenable number.

798198961 is a deficient number, since it is larger than the sum of its proper divisors (114028431).

798198961 is a wasteful number, since it uses less digits than its factorization.

798198961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114028430.

The product of its digits is 1959552, while the sum is 58.

The square root of 798198961 is about 28252.4151357012. The cubic root of 798198961 is about 927.6206030767.

The spelling of 798198961 in words is "seven hundred ninety-eight million, one hundred ninety-eight thousand, nine hundred sixty-one".