3948666 has 8 divisors (see below), whose sum is σ = 7897344. Its totient is φ = 1316220.

The previous prime is 3948653. The next prime is 3948667. The reversal of 3948666 is 6668493.

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

3948666 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (3948667) 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, 329050 + ... + 329061.

It is an arithmetic number, because the mean of its divisors is an integer number (987168).

Almost surely, 2^3948666 is an apocalyptic number.

3948666 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.

3948666 is a wasteful number, since it uses less digits than its factorization.

3948666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658116.

The product of its digits is 186624, while the sum is 42.

The square root of 3948666 is about 1987.1250589734. The cubic root of 3948666 is about 158.0581156719.

The spelling of 3948666 in words is "three million, nine hundred forty-eight thousand, six hundred sixty-six".