106918879 has 4 divisors (see below), whose sum is σ = 106939584. Its totient is φ = 106898176.

The previous prime is 106918859. The next prime is 106918883. The reversal of 106918879 is 978819601.

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 106918879 - 2⁷ = 106918751 is a prime.

It is a super-2 number, since 2×106918879² = 22863293373233282, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106918859) 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, 4434 + ... + 15280.

It is an arithmetic number, because the mean of its divisors is an integer number (26734896).

Almost surely, 2^106918879 is an apocalyptic number.

106918879 is a deficient number, since it is larger than the sum of its proper divisors (20705).

106918879 is an equidigital number, since it uses as much as digits as its factorization.

106918879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20704.

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

The square root of 106918879 is about 10340.1585577785. The cubic root of 106918879 is about 474.6259348618.

The spelling of 106918879 in words is "one hundred six million, nine hundred eighteen thousand, eight hundred seventy-nine".