14478661 has 8 divisors (see below), whose sum is σ = 15148224. Its totient is φ = 13812480.

The previous prime is 14478647. The next prime is 14478677. The reversal of 14478661 is 16687441.

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 14478661 - 2¹⁷ = 14347589 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 14478661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14478631) 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, 12726 + ... + 13816.

It is an arithmetic number, because the mean of its divisors is an integer number (1893528).

Almost surely, 2^14478661 is an apocalyptic number.

It is an amenable number.

14478661 is a deficient number, since it is larger than the sum of its proper divisors (669563).

14478661 is a wasteful number, since it uses less digits than its factorization.

14478661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691.

The product of its digits is 32256, while the sum is 37.

The square root of 14478661 is about 3805.0835733266. The cubic root of 14478661 is about 243.7302683129.

The spelling of 14478661 in words is "fourteen million, four hundred seventy-eight thousand, six hundred sixty-one".