10689731 has 8 divisors (see below), whose sum is σ = 11601744. Its totient is φ = 9790560.

The previous prime is 10689713. The next prime is 10689737. The reversal of 10689731 is 13798601.

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

It is not a de Polignac number, because 10689731 - 2¹⁴ = 10673347 is a prime.

It is a super-2 number, since 2×10689731² = 228540697704722, 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 = 10689691 and 10689700.

It is not an unprimeable number, because it can be changed into a prime (10689737) 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 7 ways as a sum of consecutive naturals, for example, 1436 + ... + 4841.

It is an arithmetic number, because the mean of its divisors is an integer number (1450218).

Almost surely, 2^10689731 is an apocalyptic number.

10689731 is a deficient number, since it is larger than the sum of its proper divisors (912013).

10689731 is a wasteful number, since it uses less digits than its factorization.

10689731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 10689731 is about 3269.5154075184. The cubic root of 10689731 is about 220.2870289384.

The spelling of 10689731 in words is "ten million, six hundred eighty-nine thousand, seven hundred thirty-one".