1376479889 has 2 divisors, whose sum is σ = 1376479890. Its totient is φ = 1376479888.

The previous prime is 1376479879. The next prime is 1376479901. The reversal of 1376479889 is 9889746731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1361979025 + 14500864 = 36905^2 + 3808^2 .

It is a cyclic number.

It is not a de Polignac number, because 1376479889 - 2⁸ = 1376479633 is a prime.

It is not a weakly prime, because it can be changed into another prime (1376479829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688239944 + 688239945.

It is an arithmetic number, because the mean of its divisors is an integer number (688239945).

Almost surely, 2^1376479889 is an apocalyptic number.

It is an amenable number.

1376479889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1376479889 is an equidigital number, since it uses as much as digits as its factorization.

1376479889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18289152, while the sum is 62.

The square root of 1376479889 is about 37100.9418883133. The cubic root of 1376479889 is about 1112.3888408735.

The spelling of 1376479889 in words is "one billion, three hundred seventy-six million, four hundred seventy-nine thousand, eight hundred eighty-nine".