830686690 has 8 divisors (see below), whose sum is σ = 1495236060. Its totient is φ = 332274672.

The previous prime is 830686679. The next prime is 830686693. The reversal of 830686690 is 96686038.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 685025929 + 145660761 = 26173^2 + 12069^2 .

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

It is a super-2 number, since 2×830686690² = 1380080753886312200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 830686690.

It is not an unprimeable number, because it can be changed into a prime (830686693) 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, 41534325 + ... + 41534344.

Almost surely, 2^830686690 is an apocalyptic number.

830686690 is a deficient number, since it is larger than the sum of its proper divisors (664549370).

830686690 is a wasteful number, since it uses less digits than its factorization.

830686690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83068676.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 830686690 is about 28821.6357967413. The cubic root of 830686690 is about 940.0387376521.

The spelling of 830686690 in words is "eight hundred thirty million, six hundred eighty-six thousand, six hundred ninety".