802817660 has 12 divisors (see below), whose sum is σ = 1685917128. Its totient is φ = 321127056.

The previous prime is 802817641. The next prime is 802817681. The reversal of 802817660 is 66718208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20070422 + ... + 20070461.

It is an arithmetic number, because the mean of its divisors is an integer number (140493094).

Almost surely, 2^802817660 is an apocalyptic number.

It is an amenable number.

802817660 is an abundant number, since it is smaller than the sum of its proper divisors (883099468).

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

802817660 is a wasteful number, since it uses less digits than its factorization.

802817660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40140892 (or 40140890 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 802817660 is about 28334.0371285138. The cubic root of 802817660 is about 929.4063579538.

The spelling of 802817660 in words is "eight hundred two million, eight hundred seventeen thousand, six hundred sixty".