683681051 has 2 divisors, whose sum is σ = 683681052. Its totient is φ = 683681050.

The previous prime is 683681029. The next prime is 683681059. The reversal of 683681051 is 150186386.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-683681051 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 683680996 and 683681014.

It is not a weakly prime, because it can be changed into another prime (683681059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341840525 + 341840526.

It is an arithmetic number, because the mean of its divisors is an integer number (341840526).

Almost surely, 2^683681051 is an apocalyptic number.

683681051 is a deficient number, since it is larger than the sum of its proper divisors (1).

683681051 is an equidigital number, since it uses as much as digits as its factorization.

683681051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 683681051 is about 26147.2952903355. The cubic root of 683681051 is about 880.9498400247.

The spelling of 683681051 in words is "six hundred eighty-three million, six hundred eighty-one thousand, fifty-one".