14007657 has 8 divisors (see below), whose sum is σ = 18766240. Its totient is φ = 9293760.

The previous prime is 14007599. The next prime is 14007659. The reversal of 14007657 is 75670041.

It is a happy number.

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

It is not a de Polignac number, because 14007657 - 2⁸ = 14007401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14007659) 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, 10432 + ... + 11697.

It is an arithmetic number, because the mean of its divisors is an integer number (2345780).

Almost surely, 2^14007657 is an apocalyptic number.

It is an amenable number.

14007657 is a deficient number, since it is larger than the sum of its proper divisors (4758583).

14007657 is a wasteful number, since it uses less digits than its factorization.

14007657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22343.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 14007657 is about 3742.6804565712. The cubic root of 14007657 is about 241.0581575983.

Adding to 14007657 its reverse (75670041), we get a palindrome (89677698).

The spelling of 14007657 in words is "fourteen million, seven thousand, six hundred fifty-seven".