106722779 has 2 divisors, whose sum is σ = 106722780. Its totient is φ = 106722778.

The previous prime is 106722769. The next prime is 106722793. The reversal of 106722779 is 977227601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 106722779 - 2²⁰ = 105674203 is a prime.

It is a super-2 number, since 2×106722779² = 22779503114965682, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (106722769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53361389 + 53361390.

It is an arithmetic number, because the mean of its divisors is an integer number (53361390).

Almost surely, 2^106722779 is an apocalyptic number.

106722779 is a deficient number, since it is larger than the sum of its proper divisors (1).

106722779 is an equidigital number, since it uses as much as digits as its factorization.

106722779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 106722779 is about 10330.6717593775. The cubic root of 106722779 is about 474.3355866801.

The spelling of 106722779 in words is "one hundred six million, seven hundred twenty-two thousand, seven hundred seventy-nine".