109967999 has 2 divisors, whose sum is σ = 109968000. Its totient is φ = 109967998.

The previous prime is 109967941. The next prime is 109968013. The reversal of 109967999 is 999769901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109967999 - 2⁸ = 109967743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109967929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54983999 + 54984000.

It is an arithmetic number, because the mean of its divisors is an integer number (54984000).

Almost surely, 2^109967999 is an apocalyptic number.

109967999 is a deficient number, since it is larger than the sum of its proper divisors (1).

109967999 is an equidigital number, since it uses as much as digits as its factorization.

109967999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2480058, while the sum is 59.

The square root of 109967999 is about 10486.5627829141. The cubic root of 109967999 is about 479.0955174947.

The spelling of 109967999 in words is "one hundred nine million, nine hundred sixty-seven thousand, nine hundred ninety-nine".