10669999 has 16 divisors (see below), whose sum is σ = 12208320. Its totient is φ = 9264640.

The previous prime is 10669991. The next prime is 10670003. The reversal of 10669999 is 99996601.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10669999 - 2³ = 10669991 is a prime.

It is a super-2 number, since 2×10669999² = 227697757320002, which contains 22 as substring.

It is a Duffinian number.

10669999 is a modest number, since divided by 9999 gives 1066 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10669991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10869 + ... + 11809.

It is an arithmetic number, because the mean of its divisors is an integer number (763020).

Almost surely, 2^10669999 is an apocalyptic number.

10669999 is a deficient number, since it is larger than the sum of its proper divisors (1538321).

10669999 is a wasteful number, since it uses less digits than its factorization.

10669999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010.

The product of its (nonzero) digits is 236196, while the sum is 49.

The square root of 10669999 is about 3266.4964411430. The cubic root of 10669999 is about 220.1514040443.

The spelling of 10669999 in words is "ten million, six hundred sixty-nine thousand, nine hundred ninety-nine".