11881746 has 12 divisors (see below), whose sum is σ = 25743822. Its totient is φ = 3960576.

The previous prime is 11881721. The next prime is 11881747. The reversal of 11881746 is 64718811.

It can be written as a sum of positive squares in only one way, i.e., 7901721 + 3980025 = 2811^2 + 1995^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11881746.

It is not an unprimeable number, because it can be changed into a prime (11881747) 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 5 ways as a sum of consecutive naturals, for example, 330031 + ... + 330066.

Almost surely, 2^11881746 is an apocalyptic number.

11881746 is an abundant number, since it is smaller than the sum of its proper divisors (13862076).

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

11881746 is a wasteful number, since it uses less digits than its factorization.

11881746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660105 (or 660102 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 11881746 is about 3446.9908616067. The cubic root of 11881746 is about 228.1883254735.

The spelling of 11881746 in words is "eleven million, eight hundred eighty-one thousand, seven hundred forty-six".