108603890 has 16 divisors (see below), whose sum is σ = 199176408. Its totient is φ = 42621696.

The previous prime is 108603889. The next prime is 108603893. The reversal of 108603890 is 98306801.

It can be written as a sum of positive squares in 4 ways, for example, as 101828281 + 6775609 = 10091^2 + 2603^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 108603890.

It is not an unprimeable number, because it can be changed into a prime (108603893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101927 + ... + 102986.

Almost surely, 2^108603890 is an apocalyptic number.

108603890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108603890 is a deficient number, since it is larger than the sum of its proper divisors (90572518).

108603890 is a wasteful number, since it uses less digits than its factorization.

108603890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204973.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 108603890 is about 10421.3190144050. The cubic root of 108603890 is about 477.1062733938.

The spelling of 108603890 in words is "one hundred eight million, six hundred three thousand, eight hundred ninety".