709782479 has 16 divisors (see below), whose sum is σ = 838748160. Its totient is φ = 587774880.

The previous prime is 709782473. The next prime is 709782517. The reversal of 709782479 is 974287907.

It is not a de Polignac number, because 709782479 - 2⁸ = 709782223 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 709782479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709782473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145817 + ... + 150605.

It is an arithmetic number, because the mean of its divisors is an integer number (52421760).

Almost surely, 2^709782479 is an apocalyptic number.

709782479 is a deficient number, since it is larger than the sum of its proper divisors (128965681).

709782479 is a wasteful number, since it uses less digits than its factorization.

709782479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5510.

The product of its (nonzero) digits is 1778112, while the sum is 53.

The square root of 709782479 is about 26641.7431674431. The cubic root of 709782479 is about 892.0210263867.

The spelling of 709782479 in words is "seven hundred nine million, seven hundred eighty-two thousand, four hundred seventy-nine".