13489331 has 2 divisors, whose sum is σ = 13489332. Its totient is φ = 13489330.

The previous prime is 13489327. The next prime is 13489351. The reversal of 13489331 is 13398431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13489331 - 2² = 13489327 is a prime.

It is a super-2 number, since 2×13489331² = 363924101655122, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13489351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6744665 + 6744666.

It is an arithmetic number, because the mean of its divisors is an integer number (6744666).

Almost surely, 2^13489331 is an apocalyptic number.

13489331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13489331 is an equidigital number, since it uses as much as digits as its factorization.

13489331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 13489331 is about 3672.7824602064. The cubic root of 13489331 is about 238.0474154054.

The spelling of 13489331 in words is "thirteen million, four hundred eighty-nine thousand, three hundred thirty-one".