3907816 has 32 divisors (see below), whose sum is σ = 8081280. Its totient is φ = 1771440.

The previous prime is 3907811. The next prime is 3907817. The reversal of 3907816 is 6187093.

3907816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3907811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10465 + ... + 10831.

It is an arithmetic number, because the mean of its divisors is an integer number (252540).

Almost surely, 2^3907816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3907816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4040640).

3907816 is an abundant number, since it is smaller than the sum of its proper divisors (4173464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3907816 is a wasteful number, since it uses less digits than its factorization.

3907816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 3907816 is about 1976.8196680527. The cubic root of 3907816 is about 157.5111741463.

The spelling of 3907816 in words is "three million, nine hundred seven thousand, eight hundred sixteen".