798223491 has 120 divisors (see below), whose sum is σ = 1418718224. Its totient is φ = 444165120.

The previous prime is 798223483. The next prime is 798223499. The reversal of 798223491 is 194322897.

It is an interprime number because it is at equal distance from previous prime (798223483) and next prime (798223499).

It is not a de Polignac number, because 798223491 - 2³ = 798223483 is a prime.

It is a super-3 number, since 3×798223491³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798223499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 13085601 + ... + 13085661.

Almost surely, 2^798223491 is an apocalyptic number.

798223491 is a deficient number, since it is larger than the sum of its proper divisors (620494733).

798223491 is a wasteful number, since it uses less digits than its factorization.

798223491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 137 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 798223491 is about 28252.8492545442. The cubic root of 798223491 is about 927.6301054278.

The spelling of 798223491 in words is "seven hundred ninety-eight million, two hundred twenty-three thousand, four hundred ninety-one".