10997649 has 12 divisors (see below), whose sum is σ = 17107636. Its totient is φ = 6767712.

The previous prime is 10997647. The next prime is 10997683. The reversal of 10997649 is 94679901.

It can be written as a sum of positive squares in 2 ways, for example, as 6969600 + 4028049 = 2640^2 + 2007^2 .

It is not a de Polignac number, because 10997649 - 2¹ = 10997647 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10997647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46882 + ... + 47115.

Almost surely, 2^10997649 is an apocalyptic number.

It is an amenable number.

10997649 is a deficient number, since it is larger than the sum of its proper divisors (6109987).

10997649 is a wasteful number, since it uses less digits than its factorization.

10997649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94016 (or 94013 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 10997649 is about 3316.2703448302. The cubic root of 10997649 is about 222.3821637547.

The spelling of 10997649 in words is "ten million, nine hundred ninety-seven thousand, six hundred forty-nine".