12489377 has 4 divisors (see below), whose sum is σ = 12523776. Its totient is φ = 12454980.

The previous prime is 12489371. The next prime is 12489427. The reversal of 12489377 is 77398421.

12489377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77398421 = 101 ⋅766321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12489377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12489371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16649 + ... + 17382.

It is an arithmetic number, because the mean of its divisors is an integer number (3130944).

Almost surely, 2^12489377 is an apocalyptic number.

It is an amenable number.

12489377 is a deficient number, since it is larger than the sum of its proper divisors (34399).

12489377 is an equidigital number, since it uses as much as digits as its factorization.

12489377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34398.

The product of its digits is 84672, while the sum is 41.

The square root of 12489377 is about 3534.0312675470. The cubic root of 12489377 is about 232.0136795838.

The spelling of 12489377 in words is "twelve million, four hundred eighty-nine thousand, three hundred seventy-seven".