10689331 has 4 divisors (see below), whose sum is σ = 10717200. Its totient is φ = 10661464.

The previous prime is 10689293. The next prime is 10689347. The reversal of 10689331 is 13398601.

10689331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13398601 = 17 ⋅788153.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10689331 is a prime.

It is a super-2 number, since 2×10689331² = 228523594455122, 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 = 10689293 and 10689302.

It is not an unprimeable number, because it can be changed into a prime (10689391) 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, 13351 + ... + 14128.

It is an arithmetic number, because the mean of its divisors is an integer number (2679300).

Almost surely, 2^10689331 is an apocalyptic number.

10689331 is a deficient number, since it is larger than the sum of its proper divisors (27869).

10689331 is an equidigital number, since it uses as much as digits as its factorization.

10689331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27868.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 10689331 is about 3269.4542358014. The cubic root of 10689331 is about 220.2842812574.

The spelling of 10689331 in words is "ten million, six hundred eighty-nine thousand, three hundred thirty-one".