106780939 has 2 divisors, whose sum is σ = 106780940. Its totient is φ = 106780938.

The previous prime is 106780913. The next prime is 106780943. The reversal of 106780939 is 939087601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 106780939 - 2⁵ = 106780907 is a prime.

It is a super-2 number, since 2×106780939² = 22804337867443442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106780895 and 106780904.

It is not a weakly prime, because it can be changed into another prime (106780909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53390469 + 53390470.

It is an arithmetic number, because the mean of its divisors is an integer number (53390470).

Almost surely, 2^106780939 is an apocalyptic number.

106780939 is a deficient number, since it is larger than the sum of its proper divisors (1).

106780939 is an equidigital number, since it uses as much as digits as its factorization.

106780939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 106780939 is about 10333.4862945668. The cubic root of 106780939 is about 474.4217361980.

The spelling of 106780939 in words is "one hundred six million, seven hundred eighty thousand, nine hundred thirty-nine".