109959679 has 2 divisors, whose sum is σ = 109959680. Its totient is φ = 109959678.

The previous prime is 109959653. The next prime is 109959709. The reversal of 109959679 is 976959901.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109959679 is a prime.

It is a super-2 number, since 2×109959679² = 24182262011566082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109959379) 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, 54979839 + 54979840.

It is an arithmetic number, because the mean of its divisors is an integer number (54979840).

Almost surely, 2^109959679 is an apocalyptic number.

109959679 is a deficient number, since it is larger than the sum of its proper divisors (1).

109959679 is an equidigital number, since it uses as much as digits as its factorization.

109959679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1377810, while the sum is 55.

The square root of 109959679 is about 10486.1660772658. The cubic root of 109959679 is about 479.0834346607.

The spelling of 109959679 in words is "one hundred nine million, nine hundred fifty-nine thousand, six hundred seventy-nine".