10646765 has 4 divisors (see below), whose sum is σ = 12776124. Its totient is φ = 8517408.

The previous prime is 10646761. The next prime is 10646767. The reversal of 10646765 is 56764601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56764601 = 43 ⋅1320107.

It can be written as a sum of positive squares in 2 ways, for example, as 2184484 + 8462281 = 1478^2 + 2909^2 .

It is a cyclic number.

It is not a de Polignac number, because 10646765 - 2² = 10646761 is a prime.

It is a super-2 number, since 2×10646765² = 226707209930450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10646761) 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 3 ways as a sum of consecutive naturals, for example, 1064672 + ... + 1064681.

It is an arithmetic number, because the mean of its divisors is an integer number (3194031).

Almost surely, 2^10646765 is an apocalyptic number.

It is an amenable number.

10646765 is a deficient number, since it is larger than the sum of its proper divisors (2129359).

10646765 is an equidigital number, since it uses as much as digits as its factorization.

10646765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129358.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 10646765 is about 3262.9380931915. The cubic root of 10646765 is about 219.9914941615.

It can be divided in two parts, 10646 and 765, that added together give a palindrome (11411).

The spelling of 10646765 in words is "ten million, six hundred forty-six thousand, seven hundred sixty-five".