10663905 has 16 divisors (see below), whose sum is σ = 19499904. Its totient is φ = 4874880.

The previous prime is 10663903. The next prime is 10663931. The reversal of 10663905 is 50936601.

It is a happy number.

It is not a de Polignac number, because 10663905 - 2¹ = 10663903 is a prime.

It is a super-2 number, since 2×10663905² = 227437739698050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10663901) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 50676 + ... + 50885.

It is an arithmetic number, because the mean of its divisors is an integer number (1218744).

Almost surely, 2^10663905 is an apocalyptic number.

10663905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10663905 is a deficient number, since it is larger than the sum of its proper divisors (8835999).

10663905 is a wasteful number, since it uses less digits than its factorization.

10663905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101576.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 10663905 is about 3265.5635042057. The cubic root of 10663905 is about 220.1094840732.

The spelling of 10663905 in words is "ten million, six hundred sixty-three thousand, nine hundred five".