106778718 has 24 divisors (see below), whose sum is σ = 236735928. Its totient is φ = 34764912.

The previous prime is 106778701. The next prime is 106778723. The reversal of 106778718 is 817877601.

It is a happy number.

It is a super-2 number, since 2×106778718² = 22803389235447048, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68205 + ... + 69752.

It is an arithmetic number, because the mean of its divisors is an integer number (9863997).

Almost surely, 2^106778718 is an apocalyptic number.

106778718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

106778718 is an abundant number, since it is smaller than the sum of its proper divisors (129957210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

106778718 is a wasteful number, since it uses less digits than its factorization.

106778718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138008 (or 138005 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 45.

The square root of 106778718 is about 10333.3788278568. The cubic root of 106778718 is about 474.4184469156.

The spelling of 106778718 in words is "one hundred six million, seven hundred seventy-eight thousand, seven hundred eighteen".