833421668 has 24 divisors (see below), whose sum is σ = 1549661400. Its totient is φ = 392189184.

The previous prime is 833421653. The next prime is 833421713. The reversal of 833421668 is 866124338.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 220463104 + 612958564 = 14848^2 + 24758^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1553 + ... + 40856.

It is an arithmetic number, because the mean of its divisors is an integer number (64569225).

Almost surely, 2^833421668 is an apocalyptic number.

It is an amenable number.

833421668 is a deficient number, since it is larger than the sum of its proper divisors (716239732).

833421668 is a wasteful number, since it uses less digits than its factorization.

833421668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42464 (or 42428 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 833421668 is about 28869.0434202452. The cubic root of 833421668 is about 941.0692781478.

The spelling of 833421668 in words is "eight hundred thirty-three million, four hundred twenty-one thousand, six hundred sixty-eight".