109649447 has 2 divisors, whose sum is σ = 109649448. Its totient is φ = 109649446.

The previous prime is 109649443. The next prime is 109649483. The reversal of 109649447 is 744946901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109649447 - 2² = 109649443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109649398 and 109649407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109649443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54824723 + 54824724.

It is an arithmetic number, because the mean of its divisors is an integer number (54824724).

Almost surely, 2^109649447 is an apocalyptic number.

109649447 is a deficient number, since it is larger than the sum of its proper divisors (1).

109649447 is an equidigital number, since it uses as much as digits as its factorization.

109649447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 109649447 is about 10471.3631872837. The cubic root of 109649447 is about 478.6324602430.

The spelling of 109649447 in words is "one hundred nine million, six hundred forty-nine thousand, four hundred forty-seven".