11934681 has 16 divisors (see below), whose sum is σ = 17418240. Its totient is φ = 7208720.

The previous prime is 11934667. The next prime is 11934691. The reversal of 11934681 is 18643911.

It is a cyclic number.

It is not a de Polignac number, because 11934681 - 2⁶ = 11934617 is a prime.

It is a super-2 number, since 2×11934681² = 284873221143522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (11934661) 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, 16240 + ... + 16958.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 2^11934681 is an apocalyptic number.

11934681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11934681 is a deficient number, since it is larger than the sum of its proper divisors (5483559).

11934681 is a wasteful number, since it uses less digits than its factorization.

11934681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236.

The product of its digits is 5184, while the sum is 33.

The square root of 11934681 is about 3454.6607648219. The cubic root of 11934681 is about 228.5266947985.

The spelling of 11934681 in words is "eleven million, nine hundred thirty-four thousand, six hundred eighty-one".