106779979 has 2 divisors, whose sum is σ = 106779980. Its totient is φ = 106779978.

The previous prime is 106779931. The next prime is 106779989. The reversal of 106779979 is 979977601.

It is a strong prime.

It is an emirp because it is prime and its reverse (979977601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106779979 - 2⁷ = 106779851 is a prime.

It is a super-2 number, since 2×106779979² = 22803927830480882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106779919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53389989 + 53389990.

It is an arithmetic number, because the mean of its divisors is an integer number (53389990).

Almost surely, 2^106779979 is an apocalyptic number.

106779979 is a deficient number, since it is larger than the sum of its proper divisors (1).

106779979 is an equidigital number, since it uses as much as digits as its factorization.

106779979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1500282, while the sum is 55.

The square root of 106779979 is about 10333.4398435371. The cubic root of 106779979 is about 474.4203144516.

The spelling of 106779979 in words is "one hundred six million, seven hundred seventy-nine thousand, nine hundred seventy-nine".