683621874 has 48 divisors (see below), whose sum is σ = 1598100504. Its totient is φ = 209952000.

The previous prime is 683621831. The next prime is 683621903. The reversal of 683621874 is 478126386.

It can be written as a sum of positive squares in 4 ways, for example, as 667964025 + 15657849 = 25845^2 + 3957^2 .

It is a super-2 number, since 2×683621874² = 934677733222543752, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138204 + ... + 143064.

Almost surely, 2^683621874 is an apocalyptic number.

683621874 is an abundant number, since it is smaller than the sum of its proper divisors (914478630).

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

683621874 is a wasteful number, since it uses less digits than its factorization.

683621874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5483 (or 5480 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 683621874 is about 26146.1636574087. The cubic root of 683621874 is about 880.9244219964.

The spelling of 683621874 in words is "six hundred eighty-three million, six hundred twenty-one thousand, eight hundred seventy-four".