3925816 has 32 divisors (see below), whose sum is σ = 7698240. Its totient is φ = 1875328.

The previous prime is 3925807. The next prime is 3925829. The reversal of 3925816 is 6185293.

3925816 = T₃₈₅ + T₃₈₆ + ... + T₄₃₁.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19830 + ... + 20026.

It is an arithmetic number, because the mean of its divisors is an integer number (240570).

Almost surely, 2^3925816 is an apocalyptic number.

It is an amenable number.

3925816 is a deficient number, since it is larger than the sum of its proper divisors (3772424).

3925816 is a wasteful number, since it uses less digits than its factorization.

3925816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 299 counting only the distinct ones).

The product of its digits is 12960, while the sum is 34.

The square root of 3925816 is about 1981.3672047352. The cubic root of 3925816 is about 157.7526439866.

The spelling of 3925816 in words is "three million, nine hundred twenty-five thousand, eight hundred sixteen".