797769720 has 384 divisors, whose sum is σ = 3113510400. Its totient is φ = 174873600.

The previous prime is 797769719. The next prime is 797769793. The reversal of 797769720 is 27967797.

It is a super-2 number, since 2×797769720² = 1272873052297756800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1730290 + ... + 1730750.

It is an arithmetic number, because the mean of its divisors is an integer number (8108100).

Almost surely, 2^797769720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 797769720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1556755200).

797769720 is an abundant number, since it is smaller than the sum of its proper divisors (2315740680).

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

797769720 is a wasteful number, since it uses less digits than its factorization.

797769720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 2333772, while the sum is 54.

The square root of 797769720 is about 28244.8175777434. The cubic root of 797769720 is about 927.4542935849.

The spelling of 797769720 in words is "seven hundred ninety-seven million, seven hundred sixty-nine thousand, seven hundred twenty".