807608663 has 2 divisors, whose sum is σ = 807608664. Its totient is φ = 807608662.

The previous prime is 807608597. The next prime is 807608677. The reversal of 807608663 is 366806708.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-807608663 is a prime.

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 (807608363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403804331 + 403804332.

It is an arithmetic number, because the mean of its divisors is an integer number (403804332).

Almost surely, 2^807608663 is an apocalyptic number.

807608663 is a deficient number, since it is larger than the sum of its proper divisors (1).

807608663 is an equidigital number, since it uses as much as digits as its factorization.

807608663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 807608663 is about 28418.4563796136. The cubic root of 807608663 is about 931.2515092809.

The spelling of 807608663 in words is "eight hundred seven million, six hundred eight thousand, six hundred sixty-three".