709139684 has 24 divisors (see below), whose sum is σ = 1360632000. Its totient is φ = 320712480.

The previous prime is 709139681. The next prime is 709139747. The reversal of 709139684 is 486931907.

It is not an unprimeable number, because it can be changed into a prime (709139681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31739 + ... + 49250.

It is an arithmetic number, because the mean of its divisors is an integer number (56693000).

Almost surely, 2^709139684 is an apocalyptic number.

It is an amenable number.

709139684 is a deficient number, since it is larger than the sum of its proper divisors (651492316).

709139684 is a wasteful number, since it uses less digits than its factorization.

709139684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81203 (or 81201 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 709139684 is about 26629.6767535770. The cubic root of 709139684 is about 891.7516669466.

The spelling of 709139684 in words is "seven hundred nine million, one hundred thirty-nine thousand, six hundred eighty-four".