3938837 has 4 divisors (see below), whose sum is σ = 4501536. Its totient is φ = 3376140.

The previous prime is 3938827. The next prime is 3938839. The reversal of 3938837 is 7388393.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3938837 - 2⁴ = 3938821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3938794 and 3938803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281339 + ... + 281352.

It is an arithmetic number, because the mean of its divisors is an integer number (1125384).

Almost surely, 2^3938837 is an apocalyptic number.

It is an amenable number.

3938837 is a deficient number, since it is larger than the sum of its proper divisors (562699).

3938837 is an equidigital number, since it uses as much as digits as its factorization.

3938837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562698.

The product of its digits is 108864, while the sum is 41.

The square root of 3938837 is about 1984.6503470385. The cubic root of 3938837 is about 157.9268608771.

The spelling of 3938837 in words is "three million, nine hundred thirty-eight thousand, eight hundred thirty-seven".