106781783 has 2 divisors, whose sum is σ = 106781784. Its totient is φ = 106781782.

The previous prime is 106781761. The next prime is 106781809. The reversal of 106781783 is 387187601.

It is a weak prime.

It is an emirp because it is prime and its reverse (387187601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106781783 - 2¹⁰ = 106780759 is a prime.

It is a super-2 number, since 2×106781783² = 22804698361318178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106781783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106781713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53390891 + 53390892.

It is an arithmetic number, because the mean of its divisors is an integer number (53390892).

Almost surely, 2^106781783 is an apocalyptic number.

106781783 is a deficient number, since it is larger than the sum of its proper divisors (1).

106781783 is an equidigital number, since it uses as much as digits as its factorization.

106781783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 106781783 is about 10333.5271325913. The cubic root of 106781783 is about 474.4229861429.

The spelling of 106781783 in words is "one hundred six million, seven hundred eighty-one thousand, seven hundred eighty-three".