10989811 has 16 divisors (see below), whose sum is σ = 13305600. Its totient is φ = 8876448.

The previous prime is 10989787. The next prime is 10989817. The reversal of 10989811 is 11898901.

It is a happy number.

It is not a de Polignac number, because 10989811 - 2⁹ = 10989299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10989817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8100 + ... + 9358.

It is an arithmetic number, because the mean of its divisors is an integer number (831600).

Almost surely, 2^10989811 is an apocalyptic number.

10989811 is a deficient number, since it is larger than the sum of its proper divisors (2315789).

10989811 is a wasteful number, since it uses less digits than its factorization.

10989811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338.

The product of its (nonzero) digits is 5184, while the sum is 37.

The square root of 10989811 is about 3315.0883849454. The cubic root of 10989811 is about 222.3293207744.

The spelling of 10989811 in words is "ten million, nine hundred eighty-nine thousand, eight hundred eleven".