3994837 has 16 divisors (see below), whose sum is σ = 5155200. Its totient is φ = 3003840.

The previous prime is 3994817. The next prime is 3994841. The reversal of 3994837 is 7384993.

It is a de Polignac number, because none of the positive numbers 2^k-3994837 is a prime.

It is a Duffinian number.

3994837 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3994793 and 3994802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1339 + ... + 3127.

It is an arithmetic number, because the mean of its divisors is an integer number (322200).

Almost surely, 2^3994837 is an apocalyptic number.

It is an amenable number.

3994837 is a deficient number, since it is larger than the sum of its proper divisors (1160363).

3994837 is a wasteful number, since it uses less digits than its factorization.

3994837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836.

The product of its digits is 163296, while the sum is 43.

The square root of 3994837 is about 1998.7088332221. The cubic root of 3994837 is about 158.6717778603.

The spelling of 3994837 in words is "three million, nine hundred ninety-four thousand, eight hundred thirty-seven".