109787893 has 2 divisors, whose sum is σ = 109787894. Its totient is φ = 109787892.

The previous prime is 109787891. The next prime is 109787933. The reversal of 109787893 is 398787901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102070609 + 7717284 = 10103^2 + 2778^2 .

It is a cyclic number.

It is not a de Polignac number, because 109787893 - 2¹ = 109787891 is a prime.

Together with 109787891, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 109787893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109787891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54893946 + 54893947.

It is an arithmetic number, because the mean of its divisors is an integer number (54893947).

Almost surely, 2^109787893 is an apocalyptic number.

It is an amenable number.

109787893 is a deficient number, since it is larger than the sum of its proper divisors (1).

109787893 is an equidigital number, since it uses as much as digits as its factorization.

109787893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 52.

The square root of 109787893 is about 10477.9717980151. The cubic root of 109787893 is about 478.8338197628.

The spelling of 109787893 in words is "one hundred nine million, seven hundred eighty-seven thousand, eight hundred ninety-three".