109868719 has 4 divisors (see below), whose sum is σ = 110175120. Its totient is φ = 109562320.

The previous prime is 109868711. The next prime is 109868749. The reversal of 109868719 is 917868901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109868719 - 2³ = 109868711 is a prime.

It is a super-2 number, since 2×109868719² = 24142270829401922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109868711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152662 + ... + 153379.

It is an arithmetic number, because the mean of its divisors is an integer number (27543780).

Almost surely, 2^109868719 is an apocalyptic number.

109868719 is a deficient number, since it is larger than the sum of its proper divisors (306401).

109868719 is an equidigital number, since it uses as much as digits as its factorization.

109868719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306400.

The product of its (nonzero) digits is 217728, while the sum is 49.

The square root of 109868719 is about 10481.8280371317. The cubic root of 109868719 is about 478.9512969806.

The spelling of 109868719 in words is "one hundred nine million, eight hundred sixty-eight thousand, seven hundred nineteen".