3939237 has 6 divisors (see below), whose sum is σ = 5690022. Its totient is φ = 2626152.

The previous prime is 3939227. The next prime is 3939241. The reversal of 3939237 is 7329393.

It can be written as a sum of positive squares in only one way, i.e., 3218436 + 720801 = 1794^2 + 849^2 .

It is not a de Polignac number, because 3939237 - 2⁸ = 3938981 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 218838 + ... + 218855.

It is an arithmetic number, because the mean of its divisors is an integer number (948337).

Almost surely, 2^3939237 is an apocalyptic number.

It is an amenable number.

3939237 is a deficient number, since it is larger than the sum of its proper divisors (1750785).

3939237 is a wasteful number, since it uses less digits than its factorization.

3939237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437699 (or 437696 counting only the distinct ones).

The product of its digits is 30618, while the sum is 36.

The square root of 3939237 is about 1984.7511178987. The cubic root of 3939237 is about 157.9322066688.

The spelling of 3939237 in words is "three million, nine hundred thirty-nine thousand, two hundred thirty-seven".