10663805 has 4 divisors (see below), whose sum is σ = 12796572. Its totient is φ = 8531040.

The previous prime is 10663801. The next prime is 10663819. The reversal of 10663805 is 50836601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50836601 = 23 ⋅2210287.

It can be written as a sum of positive squares in 2 ways, for example, as 2968729 + 7695076 = 1723^2 + 2774^2 .

It is not a de Polignac number, because 10663805 - 2² = 10663801 is a prime.

It is a super-2 number, since 2×10663805² = 227433474156050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10663801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066376 + ... + 1066385.

It is an arithmetic number, because the mean of its divisors is an integer number (3199143).

Almost surely, 2^10663805 is an apocalyptic number.

It is an amenable number.

10663805 is a deficient number, since it is larger than the sum of its proper divisors (2132767).

10663805 is an equidigital number, since it uses as much as digits as its factorization.

10663805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132766.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 10663805 is about 3265.5481928767. The cubic root of 10663805 is about 220.1087960508.

The spelling of 10663805 in words is "ten million, six hundred sixty-three thousand, eight hundred five".