684133446 has 16 divisors (see below), whose sum is σ = 1372670208. Its totient is φ = 227310600.

The previous prime is 684133433. The next prime is 684133501. The reversal of 684133446 is 644331486.

It is a happy number.

It is a congruent number.

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, 181450 + ... + 185181.

It is an arithmetic number, because the mean of its divisors is an integer number (85791888).

Almost surely, 2^684133446 is an apocalyptic number.

684133446 is an abundant number, since it is smaller than the sum of its proper divisors (688536762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

684133446 is a wasteful number, since it uses less digits than its factorization.

684133446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366947.

The product of its digits is 165888, while the sum is 39.

The square root of 684133446 is about 26155.9447544913. The cubic root of 684133446 is about 881.1441067470.

The spelling of 684133446 in words is "six hundred eighty-four million, one hundred thirty-three thousand, four hundred forty-six".