10989900 has 54 divisors (see below), whose sum is σ = 34450052. Its totient is φ = 2930400.

The previous prime is 10989899. The next prime is 10989917. The reversal of 10989900 is 998901.

10989900 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5206 + ... + 7005.

Almost surely, 2^10989900 is an apocalyptic number.

10989900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10989900 is an abundant number, since it is smaller than the sum of its proper divisors (23460152).

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

10989900 is a wasteful number, since it uses less digits than its factorization.

10989900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12231 (or 12221 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 10989900 is about 3315.1018083914. The cubic root of 10989900 is about 222.3299209441.

Subtracting from 10989900 its reverse (998901), we obtain a palindrome (9990999).

It can be divided in two parts, 109 and 89900, that added together give a palindrome (90009).

The spelling of 10989900 in words is "ten million, nine hundred eighty-nine thousand, nine hundred".