9966049 has 4 divisors (see below), whose sum is σ = 10114864. Its totient is φ = 9817236.

The previous prime is 9966037. The next prime is 9966091. The reversal of 9966049 is 9406699.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9966049 - 2¹⁵ = 9933281 is a prime.

It is a Duffinian number.

9966049 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9965996 and 9966014.

It is not an unprimeable number, because it can be changed into a prime (9966449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74307 + ... + 74440.

It is an arithmetic number, because the mean of its divisors is an integer number (2528716).

Almost surely, 2^9966049 is an apocalyptic number.

It is an amenable number.

9966049 is a deficient number, since it is larger than the sum of its proper divisors (148815).

9966049 is a wasteful number, since it uses less digits than its factorization.

9966049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148814.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 9966049 is about 3156.9049716455. The cubic root of 9966049 is about 215.1993751796.

The spelling of 9966049 in words is "nine million, nine hundred sixty-six thousand, forty-nine".