3909768 has 16 divisors (see below), whose sum is σ = 9774480. Its totient is φ = 1303248.

The previous prime is 3909767. The next prime is 3909769. The reversal of 3909768 is 8679093.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3909767) and next prime (3909769).

It is not an unprimeable number, because it can be changed into a prime (3909761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81430 + ... + 81477.

It is an arithmetic number, because the mean of its divisors is an integer number (610905).

Almost surely, 2^3909768 is an apocalyptic number.

It is an amenable number.

3909768 is an abundant number, since it is smaller than the sum of its proper divisors (5864712).

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

3909768 is a wasteful number, since it uses less digits than its factorization.

3909768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162916 (or 162912 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 3909768 is about 1977.3133287367. The cubic root of 3909768 is about 157.5373960081.

The spelling of 3909768 in words is "three million, nine hundred nine thousand, seven hundred sixty-eight".