721860980 has 24 divisors (see below), whose sum is σ = 1581818112. Its totient is φ = 276190112.

The previous prime is 721860973. The next prime is 721860991. The reversal of 721860980 is 89068127.

721860980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784172 + ... + 785091.

It is an arithmetic number, because the mean of its divisors is an integer number (65909088).

Almost surely, 2^721860980 is an apocalyptic number.

It is an amenable number.

721860980 is an abundant number, since it is smaller than the sum of its proper divisors (859957132).

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

721860980 is a wasteful number, since it uses less digits than its factorization.

721860980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569295 (or 1569293 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 721860980 is about 26867.4706662164. The cubic root of 721860980 is about 897.0524890913.

The spelling of 721860980 in words is "seven hundred twenty-one million, eight hundred sixty thousand, nine hundred eighty".