108071890 has 32 divisors (see below), whose sum is σ = 212626944. Its totient is φ = 39371520.

The previous prime is 108071881. The next prime is 108071891. The reversal of 108071890 is 98170801.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (108071891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4984 + ... + 15523.

It is an arithmetic number, because the mean of its divisors is an integer number (6644592).

Almost surely, 2^108071890 is an apocalyptic number.

108071890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108071890 is a deficient number, since it is larger than the sum of its proper divisors (104555054).

108071890 is a wasteful number, since it uses less digits than its factorization.

108071890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20562.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 108071890 is about 10395.7630792549. The cubic root of 108071890 is about 476.3259572109.

The spelling of 108071890 in words is "one hundred eight million, seventy-one thousand, eight hundred ninety".