802656980 has 12 divisors (see below), whose sum is σ = 1685579700. Its totient is φ = 321062784.

The previous prime is 802656979. The next prime is 802657019. The reversal of 802656980 is 89656208.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 481100356 + 321556624 = 21934^2 + 17932^2 .

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, 20066405 + ... + 20066444.

It is an arithmetic number, because the mean of its divisors is an integer number (140464975).

Almost surely, 2^802656980 is an apocalyptic number.

It is an amenable number.

802656980 is an abundant number, since it is smaller than the sum of its proper divisors (882922720).

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

802656980 is a wasteful number, since it uses less digits than its factorization.

802656980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40132858 (or 40132856 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 802656980 is about 28331.2015276444. The cubic root of 802656980 is about 929.3443484486.

The spelling of 802656980 in words is "eight hundred two million, six hundred fifty-six thousand, nine hundred eighty".