700001663 has 2 divisors, whose sum is σ = 700001664. Its totient is φ = 700001662.

The previous prime is 700001587. The next prime is 700001671. The reversal of 700001663 is 366100007.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-700001663 is a prime.

It is a super-3 number, since 3×700001663³ (a number of 28 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (700001693) 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, 350000831 + 350000832.

It is an arithmetic number, because the mean of its divisors is an integer number (350000832).

Almost surely, 2^700001663 is an apocalyptic number.

700001663 is a deficient number, since it is larger than the sum of its proper divisors (1).

700001663 is an equidigital number, since it uses as much as digits as its factorization.

700001663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 700001663 is about 26457.5445383732. The cubic root of 700001663 is about 887.9047048775.

The spelling of 700001663 in words is "seven hundred million, one thousand, six hundred sixty-three".