830638285 has 32 divisors (see below), whose sum is σ = 1045094400. Its totient is φ = 633276480.

The previous prime is 830638279. The next prime is 830638297. The reversal of 830638285 is 582836038.

It is a de Polignac number, because none of the positive numbers 2^k-830638285 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1927020 + ... + 1927450.

It is an arithmetic number, because the mean of its divisors is an integer number (32659200).

Almost surely, 2^830638285 is an apocalyptic number.

It is an amenable number.

830638285 is a deficient number, since it is larger than the sum of its proper divisors (214456115).

830638285 is a wasteful number, since it uses less digits than its factorization.

830638285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 830638285 is about 28820.7960507686. The cubic root of 830638285 is about 940.0204782773.

The spelling of 830638285 in words is "eight hundred thirty million, six hundred thirty-eight thousand, two hundred eighty-five".