11668739 has 4 divisors (see below), whose sum is σ = 11715480. Its totient is φ = 11622000.

The previous prime is 11668729. The next prime is 11668753. The reversal of 11668739 is 93786611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93786611 = 823 ⋅113957.

It is a cyclic number.

It is not a de Polignac number, because 11668739 - 2¹² = 11664643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11668696 and 11668705.

It is not an unprimeable number, because it can be changed into a prime (11668729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22994 + ... + 23495.

It is an arithmetic number, because the mean of its divisors is an integer number (2928870).

Almost surely, 2^11668739 is an apocalyptic number.

11668739 is a deficient number, since it is larger than the sum of its proper divisors (46741).

11668739 is an equidigital number, since it uses as much as digits as its factorization.

11668739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46740.

The product of its digits is 54432, while the sum is 41.

The square root of 11668739 is about 3415.9536003875. The cubic root of 11668739 is about 226.8164986385.

The spelling of 11668739 in words is "eleven million, six hundred sixty-eight thousand, seven hundred thirty-nine".