798198122 has 4 divisors (see below), whose sum is σ = 1197297186. Its totient is φ = 399099060.

The previous prime is 798198091. The next prime is 798198131. The reversal of 798198122 is 221891897.

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

It can be written as a sum of positive squares in only one way, i.e., 741963121 + 56235001 = 27239^2 + 7499^2 .

It is a super-3 number, since 3×798198122³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199549529 + ... + 199549532.

Almost surely, 2^798198122 is an apocalyptic number.

798198122 is a deficient number, since it is larger than the sum of its proper divisors (399099064).

798198122 is a wasteful number, since it uses less digits than its factorization.

798198122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399099063.

The product of its digits is 145152, while the sum is 47.

The square root of 798198122 is about 28252.4002874092. The cubic root of 798198122 is about 927.6202780642.

The spelling of 798198122 in words is "seven hundred ninety-eight million, one hundred ninety-eight thousand, one hundred twenty-two".