14661921 has 8 divisors (see below), whose sum is σ = 19568160. Its totient is φ = 9765152.

The previous prime is 14661893. The next prime is 14661937. The reversal of 14661921 is 12916641.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14661921 - 2⁷ = 14661793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14661221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2965 + ... + 6173.

It is an arithmetic number, because the mean of its divisors is an integer number (2446020).

Almost surely, 2^14661921 is an apocalyptic number.

It is an amenable number.

14661921 is a deficient number, since it is larger than the sum of its proper divisors (4906239).

14661921 is a wasteful number, since it uses less digits than its factorization.

14661921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4735.

The product of its digits is 2592, while the sum is 30.

The square root of 14661921 is about 3829.0887950007. The cubic root of 14661921 is about 244.7542781402.

The spelling of 14661921 in words is "fourteen million, six hundred sixty-one thousand, nine hundred twenty-one".