14789857 has 2 divisors, whose sum is σ = 14789858. Its totient is φ = 14789856.

The previous prime is 14789843. The next prime is 14789869. The reversal of 14789857 is 75898741.

14789857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13242321 + 1547536 = 3639^2 + 1244^2 .

It is a cyclic number.

It is not a de Polignac number, because 14789857 - 2⁷ = 14789729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14789857.

It is not a weakly prime, because it can be changed into another prime (14789057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7394928 + 7394929.

It is an arithmetic number, because the mean of its divisors is an integer number (7394929).

Almost surely, 2^14789857 is an apocalyptic number.

It is an amenable number.

14789857 is a deficient number, since it is larger than the sum of its proper divisors (1).

14789857 is an equidigital number, since it uses as much as digits as its factorization.

14789857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 49.

The square root of 14789857 is about 3845.7583127389. The cubic root of 14789857 is about 245.4641043249.

The spelling of 14789857 in words is "fourteen million, seven hundred eighty-nine thousand, eight hundred fifty-seven".