830665685 has 8 divisors (see below), whose sum is σ = 1002018816. Its totient is φ = 661052560.

The previous prime is 830665681. The next prime is 830665687. The reversal of 830665685 is 586566038.

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

It is not a de Polignac number, because 830665685 - 2² = 830665681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830665681) 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, 433949 + ... + 435858.

It is an arithmetic number, because the mean of its divisors is an integer number (125252352).

Almost surely, 2^830665685 is an apocalyptic number.

It is an amenable number.

830665685 is a deficient number, since it is larger than the sum of its proper divisors (171353131).

830665685 is a wasteful number, since it uses less digits than its factorization.

830665685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870003.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The square root of 830665685 is about 28821.2713980490. The cubic root of 830665685 is about 940.0308142155.

The spelling of 830665685 in words is "eight hundred thirty million, six hundred sixty-five thousand, six hundred eighty-five".