11781082 has 4 divisors (see below), whose sum is σ = 17671626. Its totient is φ = 5890540.

The previous prime is 11781043. The next prime is 11781089. The reversal of 11781082 is 28018711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11703241 + 77841 = 3421^2 + 279^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11781082.

It is not an unprimeable number, because it can be changed into a prime (11781089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2945269 + ... + 2945272.

Almost surely, 2^11781082 is an apocalyptic number.

11781082 is a deficient number, since it is larger than the sum of its proper divisors (5890544).

11781082 is an equidigital number, since it uses as much as digits as its factorization.

11781082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5890543.

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 11781082 is about 3432.3580815527. The cubic root of 11781082 is about 227.5420813353.

Adding to 11781082 its reverse (28018711), we get a palindrome (39799793).

The spelling of 11781082 in words is "eleven million, seven hundred eighty-one thousand, eighty-two".