42789113 has 2 divisors, whose sum is σ = 42789114. Its totient is φ = 42789112.

The previous prime is 42789091. The next prime is 42789127. The reversal of 42789113 is 31198724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22250089 + 20539024 = 4717^2 + 4532^2 .

It is a cyclic number.

It is not a de Polignac number, because 42789113 - 2⁶ = 42789049 is a prime.

It is not a weakly prime, because it can be changed into another prime (42789133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21394556 + 21394557.

It is an arithmetic number, because the mean of its divisors is an integer number (21394557).

Almost surely, 2^42789113 is an apocalyptic number.

It is an amenable number.

42789113 is a deficient number, since it is larger than the sum of its proper divisors (1).

42789113 is an equidigital number, since it uses as much as digits as its factorization.

42789113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 42789113 is about 6541.3387773452. The cubic root of 42789113 is about 349.7661376506.

The spelling of 42789113 in words is "forty-two million, seven hundred eighty-nine thousand, one hundred thirteen".