14686649 has 2 divisors, whose sum is σ = 14686650. Its totient is φ = 14686648.

The previous prime is 14686643. The next prime is 14686663. The reversal of 14686649 is 94668641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14592400 + 94249 = 3820^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 14686649 - 2⁸ = 14686393 is a prime.

It is not a weakly prime, because it can be changed into another prime (14686643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7343324 + 7343325.

It is an arithmetic number, because the mean of its divisors is an integer number (7343325).

Almost surely, 2^14686649 is an apocalyptic number.

It is an amenable number.

14686649 is a deficient number, since it is larger than the sum of its proper divisors (1).

14686649 is an equidigital number, since it uses as much as digits as its factorization.

14686649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 44.

The square root of 14686649 is about 3832.3164013427. The cubic root of 14686649 is about 244.8917972845.

The spelling of 14686649 in words is "fourteen million, six hundred eighty-six thousand, six hundred forty-nine".