113809789 has 2 divisors, whose sum is σ = 113809790. Its totient is φ = 113809788.

The previous prime is 113809763. The next prime is 113809807. The reversal of 113809789 is 987908311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79388100 + 34421689 = 8910^2 + 5867^2 .

It is a cyclic number.

It is not a de Polignac number, because 113809789 - 2¹⁷ = 113678717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113809739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56904894 + 56904895.

It is an arithmetic number, because the mean of its divisors is an integer number (56904895).

Almost surely, 2^113809789 is an apocalyptic number.

It is an amenable number.

113809789 is a deficient number, since it is larger than the sum of its proper divisors (1).

113809789 is an equidigital number, since it uses as much as digits as its factorization.

113809789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 46.

The square root of 113809789 is about 10668.1670871804. The cubic root of 113809789 is about 484.6109311069.

The spelling of 113809789 in words is "one hundred thirteen million, eight hundred nine thousand, seven hundred eighty-nine".