6454666 has 8 divisors (see below), whose sum is σ = 9693540. Its totient is φ = 3223488.

The previous prime is 6454663. The next prime is 6454667. The reversal of 6454666 is 6664546.

It can be written as a sum of positive squares in 2 ways, for example, as 6355441 + 99225 = 2521^2 + 315^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (6454663) 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, 1170 + ... + 3778.

Almost surely, 2^6454666 is an apocalyptic number.

6454666 is a deficient number, since it is larger than the sum of its proper divisors (3238874).

6454666 is a wasteful number, since it uses less digits than its factorization.

6454666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3848.

The product of its digits is 103680, while the sum is 37.

The square root of 6454666 is about 2540.6034716185. The cubic root of 6454666 is about 186.1906743172.

The spelling of 6454666 in words is "six million, four hundred fifty-four thousand, six hundred sixty-six".