3939287 has 8 divisors (see below), whose sum is σ = 4326672. Its totient is φ = 3556800.

The previous prime is 3939277. The next prime is 3939337. The reversal of 3939287 is 7829393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3939287 - 2⁸ = 3939031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587 + ... + 2867.

It is an arithmetic number, because the mean of its divisors is an integer number (540834).

Almost surely, 2^3939287 is an apocalyptic number.

3939287 is a deficient number, since it is larger than the sum of its proper divisors (387385).

3939287 is a wasteful number, since it uses less digits than its factorization.

3939287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449.

The product of its digits is 81648, while the sum is 41.

The square root of 3939287 is about 1984.7637138964. The cubic root of 3939287 is about 157.9328748673.

The spelling of 3939287 in words is "three million, nine hundred thirty-nine thousand, two hundred eighty-seven".