11766534 has 32 divisors (see below), whose sum is σ = 25769184. Its totient is φ = 3559680.

The previous prime is 11766527. The next prime is 11766539. The reversal of 11766534 is 43566711.

It is a junction number, because it is equal to n+sod(n) for n = 11766495 and 11766504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11766539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3522 + ... + 5994.

It is an arithmetic number, because the mean of its divisors is an integer number (805287).

Almost surely, 2^11766534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11766534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12884592).

11766534 is an abundant number, since it is smaller than the sum of its proper divisors (14002650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11766534 is a wasteful number, since it uses less digits than its factorization.

11766534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552.

The product of its digits is 15120, while the sum is 33.

The square root of 11766534 is about 3430.2381841499. The cubic root of 11766534 is about 227.4483818003.

It can be divided in two parts, 1176 and 6534, that multiplied together give a square (7683984 = 2772²).

The spelling of 11766534 in words is "eleven million, seven hundred sixty-six thousand, five hundred thirty-four".