10686489 has 32 divisors (see below), whose sum is σ = 16879104. Its totient is φ = 5940480.

The previous prime is 10686463. The next prime is 10686491. The reversal of 10686489 is 98468601.

It is not a de Polignac number, because 10686489 - 2⁵ = 10686457 is a prime.

It is a super-2 number, since 2×10686489² = 228402094294242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10686489.

It is not an unprimeable number, because it can be changed into a prime (10686419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23902 + ... + 24344.

It is an arithmetic number, because the mean of its divisors is an integer number (527472).

Almost surely, 2^10686489 is an apocalyptic number.

It is an amenable number.

10686489 is a deficient number, since it is larger than the sum of its proper divisors (6192615).

10686489 is a wasteful number, since it uses less digits than its factorization.

10686489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 10686489 is about 3269.0195777939. The cubic root of 10686489 is about 220.2647570103.

It can be divided in two parts, 106864 and 89, that added together give a triangular number (106953 = T₄₆₂).

The spelling of 10686489 in words is "ten million, six hundred eighty-six thousand, four hundred eighty-nine".