1113727889 has 2 divisors, whose sum is σ = 1113727890. Its totient is φ = 1113727888.

The previous prime is 1113727871. The next prime is 1113727949. The reversal of 1113727889 is 9887273111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 773952400 + 339775489 = 27820^2 + 18433^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113727889 - 2¹⁶ = 1113662353 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113727189) 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, 556863944 + 556863945.

It is an arithmetic number, because the mean of its divisors is an integer number (556863945).

Almost surely, 2^1113727889 is an apocalyptic number.

It is an amenable number.

1113727889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113727889 is an equidigital number, since it uses as much as digits as its factorization.

1113727889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 47.

The square root of 1113727889 is about 33372.5619184383. The cubic root of 1113727889 is about 1036.5566249111.

The spelling of 1113727889 in words is "one billion, one hundred thirteen million, seven hundred twenty-seven thousand, eight hundred eighty-nine".