108777998 has 8 divisors (see below), whose sum is σ = 186476592. Its totient is φ = 46619136.

The previous prime is 108777997. The next prime is 108778037. The reversal of 108777998 is 899777801.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108777997) 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, 3884915 + ... + 3884942.

It is an arithmetic number, because the mean of its divisors is an integer number (23309574).

Almost surely, 2^108777998 is an apocalyptic number.

108777998 is a deficient number, since it is larger than the sum of its proper divisors (77698594).

108777998 is an equidigital number, since it uses as much as digits as its factorization.

108777998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7769866.

The product of its (nonzero) digits is 1778112, while the sum is 56.

The square root of 108777998 is about 10429.6691222685. The cubic root of 108777998 is about 477.3610944334.

The spelling of 108777998 in words is "one hundred eight million, seven hundred seventy-seven thousand, nine hundred ninety-eight".