108999770 has 32 divisors (see below), whose sum is σ = 225305280. Its totient is φ = 37549440.

The previous prime is 108999763. The next prime is 108999791. The reversal of 108999770 is 77999801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23987 + ... + 28166.

It is an arithmetic number, because the mean of its divisors is an integer number (7040790).

Almost surely, 2^108999770 is an apocalyptic number.

108999770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108999770 is an abundant number, since it is smaller than the sum of its proper divisors (116305510).

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

108999770 is a wasteful number, since it uses less digits than its factorization.

108999770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52190.

The product of its (nonzero) digits is 285768, while the sum is 50.

The square root of 108999770 is about 10440.2954939025. The cubic root of 108999770 is about 477.6852821164.

The spelling of 108999770 in words is "one hundred eight million, nine hundred ninety-nine thousand, seven hundred seventy".