3948664 has 8 divisors (see below), whose sum is σ = 7403760. Its totient is φ = 1974328.

The previous prime is 3948653. The next prime is 3948667. The reversal of 3948664 is 4668493.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent 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 as a sum of consecutive naturals, namely, 246784 + ... + 246799.

It is an arithmetic number, because the mean of its divisors is an integer number (925470).

Almost surely, 2^3948664 is an apocalyptic number.

It is an amenable number.

3948664 is a deficient number, since it is larger than the sum of its proper divisors (3455096).

3948664 is a wasteful number, since it uses less digits than its factorization.

3948664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493589 (or 493585 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 3948664 is about 1987.1245557337. The cubic root of 3948664 is about 158.0580889864.

The spelling of 3948664 in words is "three million, nine hundred forty-eight thousand, six hundred sixty-four".