10688439 has 4 divisors (see below), whose sum is σ = 14251256. Its totient is φ = 7125624.

The previous prime is 10688437. The next prime is 10688453. The reversal of 10688439 is 93488601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93488601 = 3 ⋅31162867.

It is not a de Polignac number, because 10688439 - 2¹ = 10688437 is a prime.

It is a super-2 number, since 2×10688439² = 228485456513442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10688397 and 10688406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10688437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781404 + ... + 1781409.

It is an arithmetic number, because the mean of its divisors is an integer number (3562814).

Almost surely, 2^10688439 is an apocalyptic number.

10688439 is a deficient number, since it is larger than the sum of its proper divisors (3562817).

10688439 is an equidigital number, since it uses as much as digits as its factorization.

10688439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562816.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 10688439 is about 3269.3178187506. The cubic root of 10688439 is about 220.2781536820.

The spelling of 10688439 in words is "ten million, six hundred eighty-eight thousand, four hundred thirty-nine".