10669905 has 24 divisors (see below), whose sum is σ = 18650112. Its totient is φ = 5642784.

The previous prime is 10669871. The next prime is 10669909. The reversal of 10669905 is 50996601.

10669905 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10669905 - 2⁷ = 10669777 is a prime.

It is a super-4 number, since 4×10669905⁴ (a number of 29 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 10669905.

It is not an unprimeable number, because it can be changed into a prime (10669909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4782 + ... + 6648.

It is an arithmetic number, because the mean of its divisors is an integer number (777088).

Almost surely, 2^10669905 is an apocalyptic number.

10669905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10669905 is a deficient number, since it is larger than the sum of its proper divisors (7980207).

10669905 is a wasteful number, since it uses less digits than its factorization.

10669905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005 (or 2002 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 10669905 is about 3266.4820526064. The cubic root of 10669905 is about 220.1507575496.

The spelling of 10669905 in words is "ten million, six hundred sixty-nine thousand, nine hundred five".