10639663 has 2 divisors, whose sum is σ = 10639664. Its totient is φ = 10639662.

The previous prime is 10639649. The next prime is 10639669. The reversal of 10639663 is 36693601.

It is a happy number.

10639663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10639663 - 2⁵ = 10639631 is a prime.

It is a super-2 number, since 2×10639663² = 226404857507138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10639669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5319831 + 5319832.

It is an arithmetic number, because the mean of its divisors is an integer number (5319832).

Almost surely, 2^10639663 is an apocalyptic number.

10639663 is a deficient number, since it is larger than the sum of its proper divisors (1).

10639663 is an equidigital number, since it uses as much as digits as its factorization.

10639663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 10639663 is about 3261.8496286616. The cubic root of 10639663 is about 219.9425676529.

The spelling of 10639663 in words is "ten million, six hundred thirty-nine thousand, six hundred sixty-three".