797697220 has 12 divisors (see below), whose sum is σ = 1675164204. Its totient is φ = 319078880.

The previous prime is 797697217. The next prime is 797697233. The reversal of 797697220 is 22796797.

It can be written as a sum of positive squares in 2 ways, for example, as 333208516 + 464488704 = 18254^2 + 21552^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19942411 + ... + 19942450.

It is an arithmetic number, because the mean of its divisors is an integer number (139597017).

Almost surely, 2^797697220 is an apocalyptic number.

It is an amenable number.

797697220 is an abundant number, since it is smaller than the sum of its proper divisors (877466984).

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

797697220 is a wasteful number, since it uses less digits than its factorization.

797697220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39884870 (or 39884868 counting only the distinct ones).

The product of its (nonzero) digits is 666792, while the sum is 49.

The square root of 797697220 is about 28243.5341273007. The cubic root of 797697220 is about 927.4261975602.

The spelling of 797697220 in words is "seven hundred ninety-seven million, six hundred ninety-seven thousand, two hundred twenty".