709927680 has 432 divisors, whose sum is σ = 2885670144. Its totient is φ = 147517440.

The previous prime is 709927679. The next prime is 709927681. The reversal of 709927680 is 86729907.

It is an interprime number because it is at equal distance from previous prime (709927679) and next prime (709927681).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709927681) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64538875 + ... + 64538885.

It is an arithmetic number, because the mean of its divisors is an integer number (6679792).

Almost surely, 2^709927680 is an apocalyptic number.

709927680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 709927680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1442835072).

709927680 is an abundant number, since it is smaller than the sum of its proper divisors (2175742464).

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

709927680 is an frugal number, since it uses more digits than its factorization.

709927680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 709927680 is about 26644.4680937714. The cubic root of 709927680 is about 892.0818494876.

The spelling of 709927680 in words is "seven hundred nine million, nine hundred twenty-seven thousand, six hundred eighty".