11774681 has 8 divisors (see below), whose sum is σ = 12061704. Its totient is φ = 11491200.

The previous prime is 11774677. The next prime is 11774683. The reversal of 11774681 is 18647711.

It can be written as a sum of positive squares in 4 ways, for example, as 3312400 + 8462281 = 1820^2 + 2909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11774681 - 2² = 11774677 is a prime.

It is a super-2 number, since 2×11774681² = 277286225303522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11774683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6575 + ... + 8171.

It is an arithmetic number, because the mean of its divisors is an integer number (1507713).

Almost surely, 2^11774681 is an apocalyptic number.

It is an amenable number.

11774681 is a deficient number, since it is larger than the sum of its proper divisors (287023).

11774681 is a wasteful number, since it uses less digits than its factorization.

11774681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771.

The product of its digits is 9408, while the sum is 35.

The square root of 11774681 is about 3431.4255055297. The cubic root of 11774681 is about 227.5008638215.

The spelling of 11774681 in words is "eleven million, seven hundred seventy-four thousand, six hundred eighty-one".