12989077 has 2 divisors, whose sum is σ = 12989078. Its totient is φ = 12989076.

The previous prime is 12989069. The next prime is 12989083. The reversal of 12989077 is 77098921.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11249316 + 1739761 = 3354^2 + 1319^2 .

It is a cyclic number.

It is not a de Polignac number, because 12989077 - 2³ = 12989069 is a prime.

It is a super-2 number, since 2×12989077² = 337432242623858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12989017) 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, 6494538 + 6494539.

It is an arithmetic number, because the mean of its divisors is an integer number (6494539).

Almost surely, 2^12989077 is an apocalyptic number.

It is an amenable number.

12989077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12989077 is an equidigital number, since it uses as much as digits as its factorization.

12989077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 12989077 is about 3604.0362095850. The cubic root of 12989077 is about 235.0675948604.

The spelling of 12989077 in words is "twelve million, nine hundred eighty-nine thousand, seventy-seven".