709887040 has 56 divisors (see below), whose sum is σ = 1713631320. Its totient is φ = 280055808.

The previous prime is 709887029. The next prime is 709887047. The reversal of 709887040 is 40788907.

It can be written as a sum of positive squares in 4 ways, for example, as 138485824 + 571401216 = 11768^2 + 23904^2 .

It is not an unprimeable number, because it can be changed into a prime (709887047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8166 + ... + 38554.

Almost surely, 2^709887040 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 709887040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (856815660).

709887040 is an abundant number, since it is smaller than the sum of its proper divisors (1003744280).

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

709887040 is a wasteful number, since it uses less digits than its factorization.

709887040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30479 (or 30469 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 709887040 is about 26643.7054480040. The cubic root of 709887040 is about 892.0648266747.

The spelling of 709887040 in words is "seven hundred nine million, eight hundred eighty-seven thousand, forty".