10889890 has 16 divisors (see below), whose sum is σ = 21384000. Its totient is φ = 3959920.

The previous prime is 10889779. The next prime is 10889891. The reversal of 10889890 is 9898801.

It is not an unprimeable number, because it can be changed into a prime (10889891) 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, 49390 + ... + 49609.

It is an arithmetic number, because the mean of its divisors is an integer number (1336500).

Almost surely, 2^10889890 is an apocalyptic number.

10889890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10889890 is a deficient number, since it is larger than the sum of its proper divisors (10494110).

10889890 is a wasteful number, since it uses less digits than its factorization.

10889890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99017.

The product of its (nonzero) digits is 41472, while the sum is 43.

The square root of 10889890 is about 3299.9833332912. The cubic root of 10889890 is about 221.6534511377.

It can be divided in two parts, 108 and 89890, that added together give a palindrome (89998).

The spelling of 10889890 in words is "ten million, eight hundred eighty-nine thousand, eight hundred ninety".