3913856 has 16 divisors (see below), whose sum is σ = 7797390. Its totient is φ = 1956864.

The previous prime is 3913837. The next prime is 3913907. The reversal of 3913856 is 6583193.

It can be written as a sum of positive squares in only one way, i.e., 3534400 + 379456 = 1880^2 + 616^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15161 + ... + 15416.

Almost surely, 2^3913856 is an apocalyptic number.

It is an amenable number.

3913856 is a deficient number, since it is larger than the sum of its proper divisors (3883534).

3913856 is an equidigital number, since it uses as much as digits as its factorization.

3913856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30591 (or 30579 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 3913856 is about 1978.3467845653. The cubic root of 3913856 is about 157.5922831990.

The spelling of 3913856 in words is "three million, nine hundred thirteen thousand, eight hundred fifty-six".