10663643 has 2 divisors, whose sum is σ = 10663644. Its totient is φ = 10663642.

The previous prime is 10663603. The next prime is 10663661. The reversal of 10663643 is 34636601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10663643 - 2¹² = 10659547 is a prime.

It is a super-2 number, since 2×10663643² = 227426564062898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10663603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5331821 + 5331822.

It is an arithmetic number, because the mean of its divisors is an integer number (5331822).

Almost surely, 2^10663643 is an apocalyptic number.

10663643 is a deficient number, since it is larger than the sum of its proper divisors (1).

10663643 is an equidigital number, since it uses as much as digits as its factorization.

10663643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 10663643 is about 3265.5233883713. The cubic root of 10663643 is about 220.1076814453.

The spelling of 10663643 in words is "ten million, six hundred sixty-three thousand, six hundred forty-three".