797994780 has 48 divisors (see below), whose sum is σ = 2437513344. Its totient is φ = 193453120.

The previous prime is 797994761. The next prime is 797994787. The reversal of 797994780 is 87499797.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797994787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603882 + ... + 605201.

It is an arithmetic number, because the mean of its divisors is an integer number (50781528).

Almost surely, 2^797994780 is an apocalyptic number.

It is an amenable number.

797994780 is an abundant number, since it is smaller than the sum of its proper divisors (1639518564).

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

797994780 is a wasteful number, since it uses less digits than its factorization.

797994780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209106 (or 1209104 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 60.

The square root of 797994780 is about 28248.8013905015. The cubic root of 797994780 is about 927.5415005539.

The spelling of 797994780 in words is "seven hundred ninety-seven million, nine hundred ninety-four thousand, seven hundred eighty".