3949976 has 8 divisors (see below), whose sum is σ = 7406220. Its totient is φ = 1974984.

The previous prime is 3949969. The next prime is 3950029. The reversal of 3949976 is 6799493.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3949976.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246866 + ... + 246881.

Almost surely, 2^3949976 is an apocalyptic number.

It is an amenable number.

3949976 is a deficient number, since it is larger than the sum of its proper divisors (3456244).

3949976 is a wasteful number, since it uses less digits than its factorization.

3949976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493753 (or 493749 counting only the distinct ones).

The product of its digits is 367416, while the sum is 47.

The square root of 3949976 is about 1987.4546535707. The cubic root of 3949976 is about 158.0755927336.

The spelling of 3949976 in words is "three million, nine hundred forty-nine thousand, nine hundred seventy-six".