6662423 has 4 divisors (see below), whose sum is σ = 6670368. Its totient is φ = 6654480.

The previous prime is 6662417. The next prime is 6662437. The reversal of 6662423 is 3242666.

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 6662423 - 2¹⁴ = 6646039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662723) 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, 2543 + ... + 4448.

It is an arithmetic number, because the mean of its divisors is an integer number (1667592).

Almost surely, 2^6662423 is an apocalyptic number.

6662423 is a deficient number, since it is larger than the sum of its proper divisors (7945).

6662423 is an equidigital number, since it uses as much as digits as its factorization.

6662423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7944.

The product of its digits is 10368, while the sum is 29.

The square root of 6662423 is about 2581.1669841372. The cubic root of 6662423 is about 188.1672628675.

The spelling of 6662423 in words is "six million, six hundred sixty-two thousand, four hundred twenty-three".