830321872 has 20 divisors (see below), whose sum is σ = 1613073220. Its totient is φ = 414047904.

The previous prime is 830321867. The next prime is 830321893. The reversal of 830321872 is 278123038.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 162409536 + 667912336 = 12744^2 + 25844^2 .

It is a super-2 number, since 2×830321872² = 1378868822243168768, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2225878 + ... + 2226250.

It is an arithmetic number, because the mean of its divisors is an integer number (80653661).

Almost surely, 2^830321872 is an apocalyptic number.

It is an amenable number.

830321872 is a deficient number, since it is larger than the sum of its proper divisors (782751348).

830321872 is an frugal number, since it uses more digits than its factorization.

830321872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 830321872 is about 28815.3062104153. The cubic root of 830321872 is about 939.9011032216.

The spelling of 830321872 in words is "eight hundred thirty million, three hundred twenty-one thousand, eight hundred seventy-two".