3939680 has 24 divisors (see below), whose sum is σ = 9307872. Its totient is φ = 1575808.

The previous prime is 3939673. The next prime is 3939713. The reversal of 3939680 is 869393.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12152 + ... + 12471.

It is an arithmetic number, because the mean of its divisors is an integer number (387828).

Almost surely, 2^3939680 is an apocalyptic number.

It is an amenable number.

3939680 is an abundant number, since it is smaller than the sum of its proper divisors (5368192).

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

3939680 is a wasteful number, since it uses less digits than its factorization.

3939680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24638 (or 24630 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 3939680 is about 1984.8627156557. The cubic root of 3939680 is about 157.9381267107.

The spelling of 3939680 in words is "three million, nine hundred thirty-nine thousand, six hundred eighty".