14321661 has 4 divisors (see below), whose sum is σ = 19095552. Its totient is φ = 9547772.

The previous prime is 14321653. The next prime is 14321677. The reversal of 14321661 is 16612341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16612341 = 3 ⋅5537447.

It is a cyclic number.

It is not a de Polignac number, because 14321661 - 2³ = 14321653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14321261) 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, 2386941 + ... + 2386946.

It is an arithmetic number, because the mean of its divisors is an integer number (4773888).

Almost surely, 2^14321661 is an apocalyptic number.

It is an amenable number.

14321661 is a deficient number, since it is larger than the sum of its proper divisors (4773891).

14321661 is an equidigital number, since it uses as much as digits as its factorization.

14321661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773890.

The product of its digits is 864, while the sum is 24.

The square root of 14321661 is about 3784.3970457657. The cubic root of 14321661 is about 242.8460980807.

The spelling of 14321661 in words is "fourteen million, three hundred twenty-one thousand, six hundred sixty-one".