11611385 has 16 divisors (see below), whose sum is σ = 14288400. Its totient is φ = 9056256.

The previous prime is 11611367. The next prime is 11611427. The reversal of 11611385 is 58311611.

It can be written as a sum of positive squares in 8 ways, for example, as 2920681 + 8690704 = 1709^2 + 2948^2 .

It is a cyclic number.

It is not a de Polignac number, because 11611385 - 2⁶ = 11611321 is a prime.

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, 43031 + ... + 43299.

It is an arithmetic number, because the mean of its divisors is an integer number (893025).

Almost surely, 2^11611385 is an apocalyptic number.

It is an amenable number.

11611385 is a deficient number, since it is larger than the sum of its proper divisors (2677015).

11611385 is an equidigital number, since it uses as much as digits as its factorization.

11611385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its digits is 720, while the sum is 26.

The square root of 11611385 is about 3407.5482388368. The cubic root of 11611385 is about 226.4442731719. Note that the first 3 decimals are identical.

Adding to 11611385 its reverse (58311611), we get a palindrome (69922996).

The spelling of 11611385 in words is "eleven million, six hundred eleven thousand, three hundred eighty-five".