709485647 has 4 divisors (see below), whose sum is σ = 764061480. Its totient is φ = 654909816.

The previous prime is 709485641. The next prime is 709485677. The reversal of 709485647 is 746584907.

709485647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746584907 = 4327 ⋅172541.

It is a cyclic number.

It is not a de Polignac number, because 709485647 - 2⁶ = 709485583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 709485595 and 709485604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709485641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27287897 + ... + 27287922.

It is an arithmetic number, because the mean of its divisors is an integer number (191015370).

Almost surely, 2^709485647 is an apocalyptic number.

709485647 is a deficient number, since it is larger than the sum of its proper divisors (54575833).

709485647 is a wasteful number, since it uses less digits than its factorization.

709485647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54575832.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 709485647 is about 26636.1717782417. The cubic root of 709485647 is about 891.8966609122.

The spelling of 709485647 in words is "seven hundred nine million, four hundred eighty-five thousand, six hundred forty-seven".