10688669 has 4 divisors (see below), whose sum is σ = 10890396. Its totient is φ = 10486944.

The previous prime is 10688651. The next prime is 10688677. The reversal of 10688669 is 96688601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96688601 = 1567 ⋅61703.

It can be written as a sum of positive squares in 2 ways, for example, as 2679769 + 8008900 = 1637^2 + 2830^2 .

It is a cyclic number.

It is not a de Polignac number, because 10688669 - 2¹² = 10684573 is a prime.

It is a super-2 number, since 2×10688669² = 228495289983122, 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 (10688609) 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, 100784 + ... + 100889.

It is an arithmetic number, because the mean of its divisors is an integer number (2722599).

Almost surely, 2^10688669 is an apocalyptic number.

It is an amenable number.

10688669 is a deficient number, since it is larger than the sum of its proper divisors (201727).

10688669 is an equidigital number, since it uses as much as digits as its factorization.

10688669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201726.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 10688669 is about 3269.3529940953. The cubic root of 10688669 is about 220.2797336948.

The spelling of 10688669 in words is "ten million, six hundred eighty-eight thousand, six hundred sixty-nine".