709040684 has 24 divisors (see below), whose sum is σ = 1382427648. Its totient is φ = 315433040.

The previous prime is 709040671. The next prime is 709040687. The reversal of 709040684 is 486040907.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (709040687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169364 + ... + 173499.

It is an arithmetic number, because the mean of its divisors is an integer number (57601152).

Almost surely, 2^709040684 is an apocalyptic number.

It is an amenable number.

709040684 is a deficient number, since it is larger than the sum of its proper divisors (673386964).

709040684 is a wasteful number, since it uses less digits than its factorization.

709040684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342925 (or 342923 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 709040684 is about 26627.8178602754. The cubic root of 709040684 is about 891.7101671191.

It can be divided in two parts, 7090 and 40684, that added together give a palindrome (47774).

The spelling of 709040684 in words is "seven hundred nine million, forty thousand, six hundred eighty-four".