109706427 has 16 divisors (see below), whose sum is σ = 167772160. Its totient is φ = 70777800.

The previous prime is 109706417. The next prime is 109706543. The reversal of 109706427 is 724607901.

It is a happy number.

109706427 is a `hidden beast` number, since 1 + 0 + 9 + 7 + 0 + 642 + 7 = 666.

It is not a de Polignac number, because 109706427 - 2⁷ = 109706299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109706391 and 109706400.

It is not an unprimeable number, because it can be changed into a prime (109706407) 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 in 15 ways as a sum of consecutive naturals, for example, 64699 + ... + 66372.

It is an arithmetic number, because the mean of its divisors is an integer number (10485760).

Almost surely, 2^109706427 is an apocalyptic number.

109706427 is a deficient number, since it is larger than the sum of its proper divisors (58065733).

109706427 is a wasteful number, since it uses less digits than its factorization.

109706427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131111 (or 131105 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 109706427 is about 10474.0835875985. The cubic root of 109706427 is about 478.7153539726.

The spelling of 109706427 in words is "one hundred nine million, seven hundred six thousand, four hundred twenty-seven".