105691783 has 2 divisors, whose sum is σ = 105691784. Its totient is φ = 105691782.

The previous prime is 105691769. The next prime is 105691787. The reversal of 105691783 is 387196501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105691783 is a prime.

It is a super-2 number, since 2×105691783² = 22341505987438178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105691787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52845891 + 52845892.

It is an arithmetic number, because the mean of its divisors is an integer number (52845892).

Almost surely, 2^105691783 is an apocalyptic number.

105691783 is a deficient number, since it is larger than the sum of its proper divisors (1).

105691783 is an equidigital number, since it uses as much as digits as its factorization.

105691783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 105691783 is about 10280.6509035177. The cubic root of 105691783 is about 472.8032009707.

The spelling of 105691783 in words is "one hundred five million, six hundred ninety-one thousand, seven hundred eighty-three".