13946489 has 2 divisors, whose sum is σ = 13946490. Its totient is φ = 13946488.

The previous prime is 13946483. The next prime is 13946501. The reversal of 13946489 is 98464931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10778089 + 3168400 = 3283^2 + 1780^2 .

It is a cyclic number.

It is not a de Polignac number, because 13946489 - 2¹⁶ = 13880953 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13946483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6973244 + 6973245.

It is an arithmetic number, because the mean of its divisors is an integer number (6973245).

Almost surely, 2^13946489 is an apocalyptic number.

It is an amenable number.

13946489 is a deficient number, since it is larger than the sum of its proper divisors (1).

13946489 is an equidigital number, since it uses as much as digits as its factorization.

13946489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 44.

The square root of 13946489 is about 3734.4998326416. The cubic root of 13946489 is about 240.7067650166.

The spelling of 13946489 in words is "thirteen million, nine hundred forty-six thousand, four hundred eighty-nine".