3557666 has 8 divisors (see below), whose sum is σ = 6098880. Its totient is φ = 1524708.

The previous prime is 3557647. The next prime is 3557681. The reversal of 3557666 is 6667553.

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

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, 127046 + ... + 127073.

It is an arithmetic number, because the mean of its divisors is an integer number (762360).

Almost surely, 2^3557666 is an apocalyptic number.

3557666 is a deficient number, since it is larger than the sum of its proper divisors (2541214).

3557666 is a wasteful number, since it uses less digits than its factorization.

3557666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254128.

The product of its digits is 113400, while the sum is 38.

The square root of 3557666 is about 1886.1776162387. The cubic root of 3557666 is about 152.6587578986.

The spelling of 3557666 in words is "three million, five hundred fifty-seven thousand, six hundred sixty-six".