107990990 has 8 divisors (see below), whose sum is σ = 194383800. Its totient is φ = 43196392.

The previous prime is 107990969. The next prime is 107990999. The reversal of 107990990 is 99099701.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107990999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5399540 + ... + 5399559.

It is an arithmetic number, because the mean of its divisors is an integer number (24297975).

Almost surely, 2^107990990 is an apocalyptic number.

107990990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

107990990 is a deficient number, since it is larger than the sum of its proper divisors (86392810).

107990990 is a wasteful number, since it uses less digits than its factorization.

107990990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10799106.

The product of its (nonzero) digits is 45927, while the sum is 44.

The square root of 107990990 is about 10391.8713425446. The cubic root of 107990990 is about 476.2070721819.

The spelling of 107990990 in words is "one hundred seven million, nine hundred ninety thousand, nine hundred ninety".