797393898 has 96 divisors (see below), whose sum is σ = 2012100480. Its totient is φ = 223534080.

The previous prime is 797393897. The next prime is 797393899. The reversal of 797393898 is 898393797.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (797393897) and next prime (797393899).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (797393897) 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 47 ways as a sum of consecutive naturals, for example, 2365986 + ... + 2366322.

It is an arithmetic number, because the mean of its divisors is an integer number (20959380).

Almost surely, 2^797393898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 797393898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006050240).

797393898 is an abundant number, since it is smaller than the sum of its proper divisors (1214706582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

797393898 is a wasteful number, since it uses less digits than its factorization.

797393898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 649 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 63.

The square root of 797393898 is about 28238.1638567383. The cubic root of 797393898 is about 927.3086323048.

The spelling of 797393898 in words is "seven hundred ninety-seven million, three hundred ninety-three thousand, eight hundred ninety-eight".