830527709 has 8 divisors (see below), whose sum is σ = 906281760. Its totient is φ = 754815600.

The previous prime is 830527703. The next prime is 830527721. The reversal of 830527709 is 907725038.

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

It is a de Polignac number, because none of the positive numbers 2^k-830527709 is a prime.

It is a super-3 number, since 3×830527709³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830527703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42662 + ... + 59000.

It is an arithmetic number, because the mean of its divisors is an integer number (113285220).

Almost surely, 2^830527709 is an apocalyptic number.

It is an amenable number.

830527709 is a deficient number, since it is larger than the sum of its proper divisors (75754051).

830527709 is a wasteful number, since it uses less digits than its factorization.

830527709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20971.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 830527709 is about 28818.8776499016. The cubic root of 830527709 is about 939.9787640442.

The spelling of 830527709 in words is "eight hundred thirty million, five hundred twenty-seven thousand, seven hundred nine".