830709 has 16 divisors (see below), whose sum is σ = 1343040. Its totient is φ = 503280.

The previous prime is 830693. The next prime is 830719. The reversal of 830709 is 907038.

It is a happy number.

It is not a de Polignac number, because 830709 - 2⁴ = 830693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830719) 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, 1102 + ... + 1695.

It is an arithmetic number, because the mean of its divisors is an integer number (83940).

2⁸³⁰⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

830709 is a deficient number, since it is larger than the sum of its proper divisors (512331).

830709 is a wasteful number, since it uses less digits than its factorization.

830709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817 (or 2811 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 830709 is about 911.4323891546. The cubic root of 830709 is about 94.0047153210.

The spelling of 830709 in words is "eight hundred thirty thousand, seven hundred nine".