6668454 has 64 divisors (see below), whose sum is σ = 15676416. Its totient is φ = 1872384.

The previous prime is 6668447. The next prime is 6668461. The reversal of 6668454 is 4548666.

It is an interprime number because it is at equal distance from previous prime (6668447) and next prime (6668461).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62269 + ... + 62375.

It is an arithmetic number, because the mean of its divisors is an integer number (244944).

Almost surely, 2^6668454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6668454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7838208).

6668454 is an abundant number, since it is smaller than the sum of its proper divisors (9007962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6668454 is a wasteful number, since it uses less digits than its factorization.

6668454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189.

The product of its digits is 138240, while the sum is 39.

The square root of 6668454 is about 2582.3349898880. The cubic root of 6668454 is about 188.2240237240.

The spelling of 6668454 in words is "six million, six hundred sixty-eight thousand, four hundred fifty-four".