10556643 has 8 divisors (see below), whose sum is σ = 14903568. Its totient is φ = 6623744.

The previous prime is 10556617. The next prime is 10556659. The reversal of 10556643 is 34665501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10556643 - 2⁸ = 10556387 is a prime.

It is a super-2 number, since 2×10556643² = 222885422858898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10556643.

It is not an unprimeable number, because it can be changed into a prime (10556683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103446 + ... + 103547.

It is an arithmetic number, because the mean of its divisors is an integer number (1862946).

Almost surely, 2^10556643 is an apocalyptic number.

10556643 is a deficient number, since it is larger than the sum of its proper divisors (4346925).

10556643 is a wasteful number, since it uses less digits than its factorization.

10556643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207013.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 10556643 is about 3249.0987981285. The cubic root of 10556643 is about 219.3690115329.

The spelling of 10556643 in words is "ten million, five hundred fifty-six thousand, six hundred forty-three".