108077777 has 8 divisors (see below), whose sum is σ = 112101672. Its totient is φ = 104112000.

The previous prime is 108077747. The next prime is 108077807. The reversal of 108077777 is 777770801.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (108077747) and next prime (108077807).

It can be written as a sum of positive squares in 4 ways, for example, as 80209936 + 27867841 = 8956^2 + 5279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108077777 - 2¹⁰ = 108076753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108077707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10724 + ... + 18197.

It is an arithmetic number, because the mean of its divisors is an integer number (14012709).

Almost surely, 2^108077777 is an apocalyptic number.

It is an amenable number.

108077777 is a deficient number, since it is larger than the sum of its proper divisors (4023895).

108077777 is a wasteful number, since it uses less digits than its factorization.

108077777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29059.

The product of its (nonzero) digits is 134456, while the sum is 44.

The square root of 108077777 is about 10396.0462195971. The cubic root of 108077777 is about 476.3346060218.

The spelling of 108077777 in words is "one hundred eight million, seventy-seven thousand, seven hundred seventy-seven".