10689690 has 64 divisors (see below), whose sum is σ = 28978560. Its totient is φ = 2499840.

The previous prime is 10689629. The next prime is 10689713. The reversal of 10689690 is 9698601.

10689690 = T₃₇₀ + T₃₇₁ + ... + T₄₈₅.

It is a super-2 number, since 2×10689690² = 228538944592200, which contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 9012 + ... + 10128.

It is an arithmetic number, because the mean of its divisors is an integer number (452790).

Almost surely, 2^10689690 is an apocalyptic number.

10689690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10689690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14489280).

10689690 is an abundant number, since it is smaller than the sum of its proper divisors (18288870).

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

10689690 is a wasteful number, since it uses less digits than its factorization.

10689690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 10689690 is about 3269.5091374700. The cubic root of 10689690 is about 220.2867473042.

The spelling of 10689690 in words is "ten million, six hundred eighty-nine thousand, six hundred ninety".