3938287 has 8 divisors (see below), whose sum is σ = 4107600. Its totient is φ = 3771264.

The previous prime is 3938281. The next prime is 3938303. The reversal of 3938287 is 7828393.

It is a happy number.

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 3938287 - 2¹¹ = 3936239 is a prime.

It is a Duffinian number.

3938287 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938281) 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, 3543 + ... + 4519.

It is an arithmetic number, because the mean of its divisors is an integer number (513450).

Almost surely, 2^3938287 is an apocalyptic number.

3938287 is a deficient number, since it is larger than the sum of its proper divisors (169313).

3938287 is a wasteful number, since it uses less digits than its factorization.

3938287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145.

The product of its digits is 72576, while the sum is 40.

The square root of 3938287 is about 1984.5117787506. The cubic root of 3938287 is about 157.9195098226.

It can be divided in two parts, 3938 and 287, that added together give a square (4225 = 65²).

The spelling of 3938287 in words is "three million, nine hundred thirty-eight thousand, two hundred eighty-seven".