6543466 has 4 divisors (see below), whose sum is σ = 9815202. Its totient is φ = 3271732.

The previous prime is 6543461. The next prime is 6543479. The reversal of 6543466 is 6643456.

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

It can be written as a sum of positive squares in only one way, i.e., 4968441 + 1575025 = 2229^2 + 1255^2 .

It is an Ulam number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (6543461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1635865 + ... + 1635868.

Almost surely, 2^6543466 is an apocalyptic number.

6543466 is a deficient number, since it is larger than the sum of its proper divisors (3271736).

6543466 is a wasteful number, since it uses less digits than its factorization.

6543466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271735.

The product of its digits is 51840, while the sum is 34.

The square root of 6543466 is about 2558.0199373734. The cubic root of 6543466 is about 187.0406271647.

The spelling of 6543466 in words is "six million, five hundred forty-three thousand, four hundred sixty-six".