10989775 has 18 divisors (see below), whose sum is σ = 13993400. Its totient is φ = 8561520.

The previous prime is 10989773. The next prime is 10989787. The reversal of 10989775 is 57798901.

10989775 = T₆ + T₇ + ... + T₄₀₃.

It is not a de Polignac number, because 10989775 - 2¹ = 10989773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10989773) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 55126 + ... + 55324.

Almost surely, 2^10989775 is an apocalyptic number.

10989775 is a deficient number, since it is larger than the sum of its proper divisors (3003625).

10989775 is an equidigital number, since it uses as much as digits as its factorization.

10989775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 46.

The square root of 10989775 is about 3315.0829552215. The cubic root of 10989775 is about 222.3290780082.

The spelling of 10989775 in words is "ten million, nine hundred eighty-nine thousand, seven hundred seventy-five".