14667661 has 4 divisors (see below), whose sum is σ = 14818972. Its totient is φ = 14516352.

The previous prime is 14667659. The next prime is 14667683. The reversal of 14667661 is 16676641.

14667661 is nontrivially palindromic in base 11.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16676641 = 197 ⋅84653.

It can be written as a sum of positive squares in 2 ways, for example, as 11095561 + 3572100 = 3331^2 + 1890^2 .

It is a cyclic number.

It is not a de Polignac number, because 14667661 - 2¹ = 14667659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14667661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14667691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75510 + ... + 75703.

It is an arithmetic number, because the mean of its divisors is an integer number (3704743).

Almost surely, 2^14667661 is an apocalyptic number.

It is an amenable number.

14667661 is a deficient number, since it is larger than the sum of its proper divisors (151311).

14667661 is an equidigital number, since it uses as much as digits as its factorization.

14667661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151310.

The product of its digits is 36288, while the sum is 37.

The square root of 14667661 is about 3829.8382472371. The cubic root of 14667661 is about 244.7862136159.

The spelling of 14667661 in words is "fourteen million, six hundred sixty-seven thousand, six hundred sixty-one".