797992020 has 384 divisors, whose sum is σ = 3070771200. Its totient is φ = 167961600.

The previous prime is 797992003. The next prime is 797992031. The reversal of 797992020 is 20299797.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2944485 + ... + 2944755.

It is an arithmetic number, because the mean of its divisors is an integer number (7996800).

Almost surely, 2^797992020 is an apocalyptic number.

797992020 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 797992020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1535385600).

797992020 is an abundant number, since it is smaller than the sum of its proper divisors (2272779180).

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

797992020 is a wasteful number, since it uses less digits than its factorization.

797992020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 797992020 is about 28248.7525388290. The cubic root of 797992020 is about 927.5404311996.

It can be divided in two parts, 7979 and 92020, that added together give a palindrome (99999).

The spelling of 797992020 in words is "seven hundred ninety-seven million, nine hundred ninety-two thousand, twenty".