660462763 has 2 divisors, whose sum is σ = 660462764. Its totient is φ = 660462762.

The previous prime is 660462749. The next prime is 660462811. The reversal of 660462763 is 367264066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 660462763 - 2⁹ = 660462251 is a prime.

It is a super-2 number, since 2×660462763² = 872422122619188338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (660462703) by changing a digit.

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 as a sum of consecutive naturals, namely, 330231381 + 330231382.

It is an arithmetic number, because the mean of its divisors is an integer number (330231382).

Almost surely, 2^660462763 is an apocalyptic number.

660462763 is a deficient number, since it is larger than the sum of its proper divisors (1).

660462763 is an equidigital number, since it uses as much as digits as its factorization.

660462763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 660462763 is about 25699.4700918132. The cubic root of 660462763 is about 870.8622108009.

The spelling of 660462763 in words is "six hundred sixty million, four hundred sixty-two thousand, seven hundred sixty-three".