10689655 has 4 divisors (see below), whose sum is σ = 12827592. Its totient is φ = 8551720.

The previous prime is 10689629. The next prime is 10689713. The reversal of 10689655 is 55698601.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10689655 - 2⁷ = 10689527 is a prime.

It is a super-2 number, since 2×10689655² = 228537448038050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068961 + ... + 1068970.

It is an arithmetic number, because the mean of its divisors is an integer number (3206898).

Almost surely, 2^10689655 is an apocalyptic number.

10689655 is a deficient number, since it is larger than the sum of its proper divisors (2137937).

10689655 is an equidigital number, since it uses as much as digits as its factorization.

10689655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137936.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 10689655 is about 3269.5037849802. The cubic root of 10689655 is about 220.2865068843.

The spelling of 10689655 in words is "ten million, six hundred eighty-nine thousand, six hundred fifty-five".