709434 has 24 divisors (see below), whose sum is σ = 1677312. Its totient is φ = 214920.

The previous prime is 709433. The next prime is 709447. The reversal of 709434 is 434907.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 709398 and 709407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709433) 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 11 ways as a sum of consecutive naturals, for example, 1594 + ... + 1989.

It is an arithmetic number, because the mean of its divisors is an integer number (69888).

2⁷⁰⁹⁴³⁴ is an apocalyptic number.

709434 is an abundant number, since it is smaller than the sum of its proper divisors (967878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

709434 is a wasteful number, since it uses less digits than its factorization.

709434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602 (or 3599 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 709434 is about 842.2790511464. The cubic root of 709434 is about 89.1875018518.

The spelling of 709434 in words is "seven hundred nine thousand, four hundred thirty-four".