6663049 has 4 divisors (see below), whose sum is σ = 6804864. Its totient is φ = 6521236.

The previous prime is 6663043. The next prime is 6663067. The reversal of 6663049 is 9403666.

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 a de Polignac number, because none of the positive numbers 2^k-6663049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6663043) 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, 70837 + ... + 70930.

It is an arithmetic number, because the mean of its divisors is an integer number (1701216).

Almost surely, 2^6663049 is an apocalyptic number.

It is an amenable number.

6663049 is a deficient number, since it is larger than the sum of its proper divisors (141815).

6663049 is a wasteful number, since it uses less digits than its factorization.

6663049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141814.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 6663049 is about 2581.2882442687. The cubic root of 6663049 is about 188.1731560697.

The spelling of 6663049 in words is "six million, six hundred sixty-three thousand, forty-nine".