709487 has 4 divisors (see below), whose sum is σ = 719280. Its totient is φ = 699696.

The previous prime is 709469. The next prime is 709507. The reversal of 709487 is 784907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784907 = 17 ⋅46171.

It is a cyclic number.

It is not a de Polignac number, because 709487 - 2⁸ = 709231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 709487.

It is not an unprimeable number, because it can be changed into a prime (709417) 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, 4787 + ... + 4932.

It is an arithmetic number, because the mean of its divisors is an integer number (179820).

2⁷⁰⁹⁴⁸⁷ is an apocalyptic number.

709487 is a deficient number, since it is larger than the sum of its proper divisors (9793).

709487 is an equidigital number, since it uses as much as digits as its factorization.

709487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9792.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 709487 is about 842.3105128158. The cubic root of 709487 is about 89.1897227865.

The spelling of 709487 in words is "seven hundred nine thousand, four hundred eighty-seven".