709400747 has 4 divisors (see below), whose sum is σ = 773891736. Its totient is φ = 644909760.

The previous prime is 709400717. The next prime is 709400749. The reversal of 709400747 is 747004907.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 709400747 - 2¹⁰ = 709399723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 709400747.

It is not an unprimeable number, because it can be changed into a prime (709400749) 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 3 ways as a sum of consecutive naturals, for example, 32245478 + ... + 32245499.

It is an arithmetic number, because the mean of its divisors is an integer number (193472934).

Almost surely, 2^709400747 is an apocalyptic number.

709400747 is a deficient number, since it is larger than the sum of its proper divisors (64490989).

709400747 is a wasteful number, since it uses less digits than its factorization.

709400747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64490988.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 709400747 is about 26634.5780330757. The cubic root of 709400747 is about 891.8610834732.

The spelling of 709400747 in words is "seven hundred nine million, four hundred thousand, seven hundred forty-seven".