1093902989 has 2 divisors, whose sum is σ = 1093902990. Its totient is φ = 1093902988.

The previous prime is 1093902973. The next prime is 1093903007. The reversal of 1093902989 is 9892093901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1056900100 + 37002889 = 32510^2 + 6083^2 .

It is a cyclic number.

It is not a de Polignac number, because 1093902989 - 2⁴ = 1093902973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1093902959) 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, 546951494 + 546951495.

It is an arithmetic number, because the mean of its divisors is an integer number (546951495).

Almost surely, 2^1093902989 is an apocalyptic number.

It is an amenable number.

1093902989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1093902989 is an equidigital number, since it uses as much as digits as its factorization.

1093902989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 50.

The square root of 1093902989 is about 33074.2042837012. The cubic root of 1093902989 is about 1030.3693616700.

The spelling of 1093902989 in words is "one billion, ninety-three million, nine hundred two thousand, nine hundred eighty-nine".