11714781 has 16 divisors (see below), whose sum is σ = 16950080. Its totient is φ = 7153920.

The previous prime is 11714779. The next prime is 11714837. The reversal of 11714781 is 18741711.

11714781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11714781 - 2¹ = 11714779 is a prime.

It is a super-2 number, since 2×11714781² = 274472187755922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11714741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4341 + ... + 6501.

It is an arithmetic number, because the mean of its divisors is an integer number (1059380).

Almost surely, 2^11714781 is an apocalyptic number.

It is an amenable number.

11714781 is a deficient number, since it is larger than the sum of its proper divisors (5235299).

11714781 is a wasteful number, since it uses less digits than its factorization.

11714781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316.

The product of its digits is 1568, while the sum is 30.

The square root of 11714781 is about 3422.6862257589. The cubic root of 11714781 is about 227.1144280027.

The spelling of 11714781 in words is "eleven million, seven hundred fourteen thousand, seven hundred eighty-one".