709875840 has 128 divisors (see below), whose sum is σ = 2271597120. Its totient is φ = 188559360.

The previous prime is 709875839. The next prime is 709875869. The reversal of 709875840 is 48578907.

709875840 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 709875840.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 634962 + ... + 636078.

Almost surely, 2^709875840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 709875840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1135798560).

709875840 is an abundant number, since it is smaller than the sum of its proper divisors (1561721280).

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

709875840 is a wasteful number, since it uses less digits than its factorization.

709875840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 709875840 is about 26643.4952661996. The cubic root of 709875840 is about 892.0601352341.

The spelling of 709875840 in words is "seven hundred nine million, eight hundred seventy-five thousand, eight hundred forty".