684903474 has 48 divisors (see below), whose sum is σ = 1498348800. Its totient is φ = 226100160.

The previous prime is 684903473. The next prime is 684903481. The reversal of 684903474 is 474309486.

684903474 is a `hidden beast` number, since 68 + 490 + 34 + 74 = 666.

It is not an unprimeable number, because it can be changed into a prime (684903473) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1314334 + ... + 1314854.

It is an arithmetic number, because the mean of its divisors is an integer number (31215600).

Almost surely, 2^684903474 is an apocalyptic number.

684903474 is an abundant number, since it is smaller than the sum of its proper divisors (813445326).

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

684903474 is a wasteful number, since it uses less digits than its factorization.

684903474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 684903474 is about 26170.6605571965. The cubic root of 684903474 is about 881.4745740618.

The spelling of 684903474 in words is "six hundred eighty-four million, nine hundred three thousand, four hundred seventy-four".