10643669 has 4 divisors (see below), whose sum is σ = 10650444. Its totient is φ = 10636896.

The previous prime is 10643657. The next prime is 10643693. The reversal of 10643669 is 96634601.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5522500 + 5121169 = 2350^2 + 2263^2 .

It is a cyclic number.

It is not a de Polignac number, because 10643669 - 2⁴ = 10643653 is a prime.

It is a super-2 number, since 2×10643669² = 226575379563122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10643639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329 + ... + 4625.

It is an arithmetic number, because the mean of its divisors is an integer number (2662611).

Almost surely, 2^10643669 is an apocalyptic number.

It is an amenable number.

10643669 is a deficient number, since it is larger than the sum of its proper divisors (6775).

10643669 is an equidigital number, since it uses as much as digits as its factorization.

10643669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6774.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 10643669 is about 3262.4636396441. The cubic root of 10643669 is about 219.9701681313.

The spelling of 10643669 in words is "ten million, six hundred forty-three thousand, six hundred sixty-nine".