14388857 has 4 divisors (see below), whose sum is σ = 16444416. Its totient is φ = 12333300.

The previous prime is 14388841. The next prime is 14388859. The reversal of 14388857 is 75888341.

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.

It is not a de Polignac number, because 14388857 - 2⁴ = 14388841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14388859) 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, 1027769 + ... + 1027782.

It is an arithmetic number, because the mean of its divisors is an integer number (4111104).

Almost surely, 2^14388857 is an apocalyptic number.

It is an amenable number.

14388857 is a deficient number, since it is larger than the sum of its proper divisors (2055559).

14388857 is an equidigital number, since it uses as much as digits as its factorization.

14388857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055558.

The product of its digits is 215040, while the sum is 44.

The square root of 14388857 is about 3793.2646888927. The cubic root of 14388857 is about 243.2253099470.

The spelling of 14388857 in words is "fourteen million, three hundred eighty-eight thousand, eight hundred fifty-seven".