3937387 has 4 divisors (see below), whose sum is σ = 4169016. Its totient is φ = 3705760.

The previous prime is 3937369. The next prime is 3937397. The reversal of 3937387 is 7837393.

3937387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3937387 - 2¹⁹ = 3413099 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3937337) 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 3 ways as a sum of consecutive naturals, for example, 115789 + ... + 115822.

It is an arithmetic number, because the mean of its divisors is an integer number (1042254).

Almost surely, 2^3937387 is an apocalyptic number.

3937387 is a deficient number, since it is larger than the sum of its proper divisors (231629).

3937387 is a wasteful number, since it uses less digits than its factorization.

3937387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231628.

The product of its digits is 95256, while the sum is 40.

The square root of 3937387 is about 1984.2850097705. The cubic root of 3937387 is about 157.9074793478.

The spelling of 3937387 in words is "three million, nine hundred thirty-seven thousand, three hundred eighty-seven".