662640683 has 2 divisors, whose sum is σ = 662640684. Its totient is φ = 662640682.

The previous prime is 662640677. The next prime is 662640761. The reversal of 662640683 is 386046266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 662640683 - 2⁶ = 662640619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 662640683.

It is not a weakly prime, because it can be changed into another prime (662640673) 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 as a sum of consecutive naturals, namely, 331320341 + 331320342.

It is an arithmetic number, because the mean of its divisors is an integer number (331320342).

Almost surely, 2^662640683 is an apocalyptic number.

662640683 is a deficient number, since it is larger than the sum of its proper divisors (1).

662640683 is an equidigital number, since it uses as much as digits as its factorization.

662640683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 662640683 is about 25741.8080755801. The cubic root of 662640683 is about 871.8184026038.

The spelling of 662640683 in words is "six hundred sixty-two million, six hundred forty thousand, six hundred eighty-three".