108077778 has 12 divisors (see below), whose sum is σ = 234168558. Its totient is φ = 36025920.

The previous prime is 108077747. The next prime is 108077807. The reversal of 108077778 is 877770801.

It can be written as a sum of positive squares in only one way, i.e., 65658609 + 42419169 = 8103^2 + 6513^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3002143 + ... + 3002178.

Almost surely, 2^108077778 is an apocalyptic number.

108077778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

108077778 is an abundant number, since it is smaller than the sum of its proper divisors (126090780).

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

108077778 is a wasteful number, since it uses less digits than its factorization.

108077778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6004329 (or 6004326 counting only the distinct ones).

The product of its (nonzero) digits is 153664, while the sum is 45.

The square root of 108077778 is about 10396.0462676923. The cubic root of 108077778 is about 476.3346074909.

The spelling of 108077778 in words is "one hundred eight million, seventy-seven thousand, seven hundred seventy-eight".