3918437 has 8 divisors (see below), whose sum is σ = 4029696. Its totient is φ = 3808432.

The previous prime is 3918413. The next prime is 3918443. The reversal of 3918437 is 7348193.

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 3918437 - 2¹⁰ = 3917413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3918397 and 3918406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3918037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12203 + ... + 12519.

It is an arithmetic number, because the mean of its divisors is an integer number (503712).

Almost surely, 2^3918437 is an apocalyptic number.

It is an amenable number.

3918437 is a deficient number, since it is larger than the sum of its proper divisors (111259).

3918437 is a wasteful number, since it uses less digits than its factorization.

3918437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627.

The product of its digits is 18144, while the sum is 35.

The square root of 3918437 is about 1979.5042308619. The cubic root of 3918437 is about 157.6537442210.

The spelling of 3918437 in words is "three million, nine hundred eighteen thousand, four hundred thirty-seven".