1426912889 has 2 divisors, whose sum is σ = 1426912890. Its totient is φ = 1426912888.

The previous prime is 1426912859. The next prime is 1426912891. The reversal of 1426912889 is 9882196241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1114224400 + 312688489 = 33380^2 + 17683^2 .

It is a cyclic number.

It is not a de Polignac number, because 1426912889 - 2¹⁶ = 1426847353 is a prime.

Together with 1426912891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1426912819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713456444 + 713456445.

It is an arithmetic number, because the mean of its divisors is an integer number (713456445).

Almost surely, 2^1426912889 is an apocalyptic number.

It is an amenable number.

1426912889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1426912889 is an equidigital number, since it uses as much as digits as its factorization.

1426912889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 50.

The square root of 1426912889 is about 37774.5005129121. The cubic root of 1426912889 is about 1125.8118621062.

The spelling of 1426912889 in words is "one billion, four hundred twenty-six million, nine hundred twelve thousand, eight hundred eighty-nine".