797990036 has 12 divisors (see below), whose sum is σ = 1398332628. Its totient is φ = 398466432.

The previous prime is 797990021. The next prime is 797990041. The reversal of 797990036 is 630099797.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 316626436 + 481363600 = 17794^2 + 21940^2 .

It is a congruent number.

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, 128741 + ... + 134796.

It is an arithmetic number, because the mean of its divisors is an integer number (116527719).

Almost surely, 2^797990036 is an apocalyptic number.

It is an amenable number.

797990036 is a deficient number, since it is larger than the sum of its proper divisors (600342592).

797990036 is a wasteful number, since it uses less digits than its factorization.

797990036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264298 (or 264296 counting only the distinct ones).

The product of its (nonzero) digits is 642978, while the sum is 50.

The square root of 797990036 is about 28248.7174222123. The cubic root of 797990036 is about 927.5396625028.

The spelling of 797990036 in words is "seven hundred ninety-seven million, nine hundred ninety thousand, thirty-six".