10915643 has 2 divisors, whose sum is σ = 10915644. Its totient is φ = 10915642.

The previous prime is 10915607. The next prime is 10915657. The reversal of 10915643 is 34651901.

10915643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (34651901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10915643 - 2¹² = 10911547 is a prime.

It is not a weakly prime, because it can be changed into another prime (10915243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5457821 + 5457822.

It is an arithmetic number, because the mean of its divisors is an integer number (5457822).

Almost surely, 2^10915643 is an apocalyptic number.

10915643 is a deficient number, since it is larger than the sum of its proper divisors (1).

10915643 is an equidigital number, since it uses as much as digits as its factorization.

10915643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 10915643 is about 3303.8830185102. The cubic root of 10915643 is about 221.8280396019.

The spelling of 10915643 in words is "ten million, nine hundred fifteen thousand, six hundred forty-three".