684101928 has 32 divisors (see below), whose sum is σ = 1710912960. Its totient is φ = 227946240.

The previous prime is 684101927. The next prime is 684101939. The reversal of 684101928 is 829101486.

It is not an unprimeable number, because it can be changed into a prime (684101923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98176 + ... + 104912.

It is an arithmetic number, because the mean of its divisors is an integer number (53466030).

Almost surely, 2^684101928 is an apocalyptic number.

It is an amenable number.

684101928 is an abundant number, since it is smaller than the sum of its proper divisors (1026811032).

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

684101928 is a wasteful number, since it uses less digits than its factorization.

684101928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10977 (or 10973 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 684101928 is about 26155.3422458969. The cubic root of 684101928 is about 881.1305751148.

The spelling of 684101928 in words is "six hundred eighty-four million, one hundred one thousand, nine hundred twenty-eight".