5715666 has 24 divisors (see below), whose sum is σ = 13510224. Its totient is φ = 1731960.

The previous prime is 5715643. The next prime is 5715673. The reversal of 5715666 is 6665175.

It is a happy number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 5715666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14236 + ... + 14631.

It is an arithmetic number, because the mean of its divisors is an integer number (562926).

Almost surely, 2^5715666 is an apocalyptic number.

5715666 is an abundant number, since it is smaller than the sum of its proper divisors (7794558).

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

5715666 is a wasteful number, since it uses less digits than its factorization.

5715666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28886 (or 28883 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 5715666 is about 2390.7459087072. The cubic root of 5715666 is about 178.7951006870.

The spelling of 5715666 in words is "five million, seven hundred fifteen thousand, six hundred sixty-six".