684470460 has 48 divisors (see below), whose sum is σ = 1917683712. Its totient is φ = 182414400.

The previous prime is 684470419. The next prime is 684470471. The reversal of 684470460 is 64074486.

684470460 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×684470460² = 936999621225223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158125 + ... + 162395.

It is an arithmetic number, because the mean of its divisors is an integer number (39951744).

Almost surely, 2^684470460 is an apocalyptic number.

684470460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

684470460 is an abundant number, since it is smaller than the sum of its proper divisors (1233213252).

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

684470460 is a wasteful number, since it uses less digits than its factorization.

684470460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6954 (or 6952 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 684470460 is about 26162.3863590461. The cubic root of 684470460 is about 881.2887710924.

The spelling of 684470460 in words is "six hundred eighty-four million, four hundred seventy thousand, four hundred sixty".