687470683 has 2 divisors, whose sum is σ = 687470684. Its totient is φ = 687470682.

The previous prime is 687470669. The next prime is 687470699. The reversal of 687470683 is 386074786.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 687470683 - 2⁹ = 687470171 is a prime.

It is not a weakly prime, because it can be changed into another prime (687470603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343735341 + 343735342.

It is an arithmetic number, because the mean of its divisors is an integer number (343735342).

Almost surely, 2^687470683 is an apocalyptic number.

687470683 is a deficient number, since it is larger than the sum of its proper divisors (1).

687470683 is an equidigital number, since it uses as much as digits as its factorization.

687470683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The square root of 687470683 is about 26219.6621450392. The cubic root of 687470683 is about 882.5745382929.

The spelling of 687470683 in words is "six hundred eighty-seven million, four hundred seventy thousand, six hundred eighty-three".