684541740 has 48 divisors (see below), whose sum is σ = 1963473120. Its totient is φ = 178091520.

The previous prime is 684541733. The next prime is 684541769. The reversal of 684541740 is 47145486.

684541740 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136675 + ... + 141594.

It is an arithmetic number, because the mean of its divisors is an integer number (40905690).

Almost surely, 2^684541740 is an apocalyptic number.

684541740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

684541740 is an abundant number, since it is smaller than the sum of its proper divisors (1278931380).

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

684541740 is a wasteful number, since it uses less digits than its factorization.

684541740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278322 (or 278320 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 684541740 is about 26163.7485846352. The cubic root of 684541740 is about 881.3193621779.

The spelling of 684541740 in words is "six hundred eighty-four million, five hundred forty-one thousand, seven hundred forty".