13789449 has 6 divisors (see below), whose sum is σ = 19918106. Its totient is φ = 9192960.

The previous prime is 13789441. The next prime is 13789469. The reversal of 13789449 is 94498731.

It can be written as a sum of positive squares in only one way, i.e., 9809424 + 3980025 = 3132^2 + 1995^2 .

It is not a de Polignac number, because 13789449 - 2³ = 13789441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13789441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 766072 + ... + 766089.

Almost surely, 2^13789449 is an apocalyptic number.

It is an amenable number.

13789449 is a deficient number, since it is larger than the sum of its proper divisors (6128657).

13789449 is a wasteful number, since it uses less digits than its factorization.

13789449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532167 (or 1532164 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 13789449 is about 3713.4147357924. The cubic root of 13789449 is about 239.7998852718.

The spelling of 13789449 in words is "thirteen million, seven hundred eighty-nine thousand, four hundred forty-nine".