5406666 has 8 divisors (see below), whose sum is σ = 10813344. Its totient is φ = 1802220.

The previous prime is 5406649. The next prime is 5406671. The reversal of 5406666 is 6666045.

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

5406666 is an admirable number.

It is an Ulam number.

5406666 is a modest number, since divided by 6666 gives 540 as remainder.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450550 + ... + 450561.

It is an arithmetic number, because the mean of its divisors is an integer number (1351668).

Almost surely, 2^5406666 is an apocalyptic number.

5406666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5406666 is a wasteful number, since it uses less digits than its factorization.

5406666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901116.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 5406666 is about 2325.2238601907. The cubic root of 5406666 is about 175.5132253570.

The spelling of 5406666 in words is "five million, four hundred six thousand, six hundred sixty-six".