106777805 has 4 divisors (see below), whose sum is σ = 128133372. Its totient is φ = 85422240.

The previous prime is 106777789. The next prime is 106777813. The reversal of 106777805 is 508777601.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26245129 + 80532676 = 5123^2 + 8974^2 .

It is not a de Polignac number, because 106777805 - 2⁴ = 106777789 is a prime.

It is a super-2 number, since 2×106777805² = 22802999281236050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10677776 + ... + 10677785.

It is an arithmetic number, because the mean of its divisors is an integer number (32033343).

Almost surely, 2^106777805 is an apocalyptic number.

It is an amenable number.

106777805 is a deficient number, since it is larger than the sum of its proper divisors (21355567).

106777805 is an equidigital number, since it uses as much as digits as its factorization.

106777805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21355566.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 106777805 is about 10333.3346505376. The cubic root of 106777805 is about 474.4170947570.

The spelling of 106777805 in words is "one hundred six million, seven hundred seventy-seven thousand, eight hundred five".