706722780 has 48 divisors (see below), whose sum is σ = 1980647424. Its totient is φ = 188285760.

The previous prime is 706722769. The next prime is 706722787. The reversal of 706722780 is 87227607.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706722787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68565 + ... + 78195.

It is an arithmetic number, because the mean of its divisors is an integer number (41263488).

Almost surely, 2^706722780 is an apocalyptic number.

It is an amenable number.

706722780 is an abundant number, since it is smaller than the sum of its proper divisors (1273924644).

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

706722780 is a wasteful number, since it uses less digits than its factorization.

706722780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10866 (or 10864 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 706722780 is about 26584.2581239349. The cubic root of 706722780 is about 890.7374185457.

The spelling of 706722780 in words is "seven hundred six million, seven hundred twenty-two thousand, seven hundred eighty".