709427 has 8 divisors (see below), whose sum is σ = 777600. Its totient is φ = 644224.

The previous prime is 709421. The next prime is 709433. The reversal of 709427 is 724907.

It is an interprime number because it is at equal distance from previous prime (709421) and next prime (709433).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 709427 - 2¹⁰ = 708403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

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 709427.

It is not an unprimeable number, because it can be changed into a prime (709421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227 + ... + 1212.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

2⁷⁰⁹⁴²⁷ is an apocalyptic number.

709427 is a deficient number, since it is larger than the sum of its proper divisors (68173).

709427 is a wasteful number, since it uses less digits than its factorization.

709427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 709427 is about 842.2748957437. The cubic root of 709427 is about 89.1872085125.

The spelling of 709427 in words is "seven hundred nine thousand, four hundred twenty-seven".