10689660 has 36 divisors (see below), whose sum is σ = 32425848. Its totient is φ = 2850528.

The previous prime is 10689629. The next prime is 10689713. The reversal of 10689660 is 6698601.

10689660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×10689660² = 228537661831200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29514 + ... + 29873.

It is an arithmetic number, because the mean of its divisors is an integer number (900718).

Almost surely, 2^10689660 is an apocalyptic number.

10689660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10689660 is an abundant number, since it is smaller than the sum of its proper divisors (21736188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10689660 is a wasteful number, since it uses less digits than its factorization.

10689660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59402 (or 59397 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 10689660 is about 3269.5045496222. The cubic root of 10689660 is about 220.2865412300.

The spelling of 10689660 in words is "ten million, six hundred eighty-nine thousand, six hundred sixty".