10690809 has 8 divisors (see below), whose sum is σ = 14273760. Its totient is φ = 7117536.

The previous prime is 10690793. The next prime is 10690819. The reversal of 10690809 is 90809601.

It is a happy number.

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

It is not a de Polignac number, because 10690809 - 2⁴ = 10690793 is a prime.

It is a super-2 number, since 2×10690809² = 228586794148962, 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 10690809.

It is not an unprimeable number, because it can be changed into a prime (10690819) 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, 757 + ... + 4685.

It is an arithmetic number, because the mean of its divisors is an integer number (1784220).

Almost surely, 2^10690809 is an apocalyptic number.

It is an amenable number.

10690809 is a deficient number, since it is larger than the sum of its proper divisors (3582951).

10690809 is an equidigital number, since it uses as much as digits as its factorization.

10690809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4839.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 10690809 is about 3269.6802595973. The cubic root of 10690809 is about 220.2944335973.

The spelling of 10690809 in words is "ten million, six hundred ninety thousand, eight hundred nine".