683628730 has 16 divisors (see below), whose sum is σ = 1230900264. Its totient is φ = 273369600.

The previous prime is 683628727. The next prime is 683628733. The reversal of 683628730 is 37826386.

It is an interprime number because it is at equal distance from previous prime (683628727) and next prime (683628733).

It can be written as a sum of positive squares in 4 ways, for example, as 560884489 + 122744241 = 23683^2 + 11079^2 .

It is not an unprimeable number, because it can be changed into a prime (683628733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33874 + ... + 50146.

Almost surely, 2^683628730 is an apocalyptic number.

683628730 is a deficient number, since it is larger than the sum of its proper divisors (547271534).

683628730 is a wasteful number, since it uses less digits than its factorization.

683628730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20481.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 683628730 is about 26146.2947661805. The cubic root of 683628730 is about 880.9273668981.

The spelling of 683628730 in words is "six hundred eighty-three million, six hundred twenty-eight thousand, seven hundred thirty".