920707663 has 2 divisors, whose sum is σ = 920707664. Its totient is φ = 920707662.

The previous prime is 920707651. The next prime is 920707673. The reversal of 920707663 is 366707029.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920707663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920707673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460353831 + 460353832.

It is an arithmetic number, because the mean of its divisors is an integer number (460353832).

Almost surely, 2^920707663 is an apocalyptic number.

920707663 is a deficient number, since it is larger than the sum of its proper divisors (1).

920707663 is an equidigital number, since it uses as much as digits as its factorization.

920707663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 920707663 is about 30343.1650128987. The cubic root of 920707663 is about 972.8381337301.

The spelling of 920707663 in words is "nine hundred twenty million, seven hundred seven thousand, six hundred sixty-three".