6650243 has 4 divisors (see below), whose sum is σ = 6939408. Its totient is φ = 6361080.

The previous prime is 6650239. The next prime is 6650257. The reversal of 6650243 is 3420566.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6650243 - 2² = 6650239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6650233) 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, 144548 + ... + 144593.

It is an arithmetic number, because the mean of its divisors is an integer number (1734852).

Almost surely, 2^6650243 is an apocalyptic number.

6650243 is a deficient number, since it is larger than the sum of its proper divisors (289165).

6650243 is a wasteful number, since it uses less digits than its factorization.

6650243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289164.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 6650243 is about 2578.8065068942. The cubic root of 6650243 is about 188.0525260656.

The spelling of 6650243 in words is "six million, six hundred fifty thousand, two hundred forty-three".