10989649 has 8 divisors (see below), whose sum is σ = 12102048. Its totient is φ = 9896160.

The previous prime is 10989617. The next prime is 10989659. The reversal of 10989649 is 94698901.

10989649 = 561² + 562² + ... + 593².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10989649 - 2⁵ = 10989617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10989599 and 10989608.

It is not an unprimeable number, because it can be changed into a prime (10989659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3492 + ... + 5845.

It is an arithmetic number, because the mean of its divisors is an integer number (1512756).

Almost surely, 2^10989649 is an apocalyptic number.

It is an amenable number.

10989649 is a deficient number, since it is larger than the sum of its proper divisors (1112399).

10989649 is a wasteful number, since it uses less digits than its factorization.

10989649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9455.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 10989649 is about 3315.0639511177. The cubic root of 10989649 is about 222.3282283223.

The spelling of 10989649 in words is "ten million, nine hundred eighty-nine thousand, six hundred forty-nine".