106820777 has 4 divisors (see below), whose sum is σ = 122080896. Its totient is φ = 91560660.

The previous prime is 106820743. The next prime is 106820789. The reversal of 106820777 is 777028601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 106820777 - 2⁸ = 106820521 is a prime.

It is a super-2 number, since 2×106820777² = 22821356797767458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106820777.

It is not an unprimeable number, because it can be changed into a prime (106820797) 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, 7630049 + ... + 7630062.

It is an arithmetic number, because the mean of its divisors is an integer number (30520224).

Almost surely, 2^106820777 is an apocalyptic number.

It is an amenable number.

106820777 is a deficient number, since it is larger than the sum of its proper divisors (15260119).

106820777 is an equidigital number, since it uses as much as digits as its factorization.

106820777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15260118.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 106820777 is about 10335.4137314381. The cubic root of 106820777 is about 474.4807281972.

The spelling of 106820777 in words is "one hundred six million, eight hundred twenty thousand, seven hundred seventy-seven".