681474586 has 12 divisors (see below), whose sum is σ = 1106892702. Its totient is φ = 314526576.

The previous prime is 681474559. The next prime is 681474611. The reversal of 681474586 is 685474186.

681474586 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 202521361 + 478953225 = 14231^2 + 21885^2 .

It is a super-2 number, since 2×681474586² = 928815222727742792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1007761 + ... + 1008436.

Almost surely, 2^681474586 is an apocalyptic number.

681474586 is a deficient number, since it is larger than the sum of its proper divisors (425418116).

681474586 is a wasteful number, since it uses less digits than its factorization.

681474586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016225 (or 2016212 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 49.

The square root of 681474586 is about 26105.0682052355. The cubic root of 681474586 is about 880.0011131184.

The spelling of 681474586 in words is "six hundred eighty-one million, four hundred seventy-four thousand, five hundred eighty-six".