11297765 has 16 divisors (see below), whose sum is σ = 14043888. Its totient is φ = 8718336.

The previous prime is 11297743. The next prime is 11297771. The reversal of 11297765 is 56779211.

It can be written as a sum of positive squares in 8 ways, for example, as 1324801 + 9972964 = 1151^2 + 3158^2 .

It is a cyclic number.

It is not a de Polignac number, because 11297765 - 2¹² = 11293669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 31829 + ... + 32181.

It is an arithmetic number, because the mean of its divisors is an integer number (877743).

Almost surely, 2^11297765 is an apocalyptic number.

It is an amenable number.

11297765 is a deficient number, since it is larger than the sum of its proper divisors (2746123).

11297765 is a wasteful number, since it uses less digits than its factorization.

11297765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568.

The product of its digits is 26460, while the sum is 38.

The square root of 11297765 is about 3361.2148101542. The cubic root of 11297765 is about 224.3869070581.

The spelling of 11297765 in words is "eleven million, two hundred ninety-seven thousand, seven hundred sixty-five".