711865980 has 72 divisors (see below), whose sum is σ = 2467806432. Its totient is φ = 162711936.

The previous prime is 711865969. The next prime is 711865981. The reversal of 711865980 is 89568117.

It is a super-3 number, since 3×711865980³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711865981) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 281227 + ... + 283746.

Almost surely, 2^711865980 is an apocalyptic number.

711865980 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

711865980 is an abundant number, since it is smaller than the sum of its proper divisors (1755940452).

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

711865980 is a wasteful number, since it uses less digits than its factorization.

711865980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564995 (or 564990 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The square root of 711865980 is about 26680.8167041416. The cubic root of 711865980 is about 892.8929889029.

The spelling of 711865980 in words is "seven hundred eleven million, eight hundred sixty-five thousand, nine hundred eighty".