3837213 has 12 divisors (see below), whose sum is σ = 5748288. Its totient is φ = 2557980.

The previous prime is 3837209. The next prime is 3837217. The reversal of 3837213 is 3127383.

It is an interprime number because it is at equal distance from previous prime (3837209) and next prime (3837217).

It is not a de Polignac number, because 3837213 - 2² = 3837209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3837217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7653 + ... + 8138.

It is an arithmetic number, because the mean of its divisors is an integer number (479024).

Almost surely, 2^3837213 is an apocalyptic number.

It is an amenable number.

3837213 is a deficient number, since it is larger than the sum of its proper divisors (1911075).

3837213 is an equidigital number, since it uses as much as digits as its factorization.

3837213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15806 (or 15794 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 3837213 is about 1958.8805476598. The cubic root of 3837213 is about 156.5568119774.

It can be divided in two parts, 3837 and 213, that multiplied together give a triangular number (817281 = T₁₂₇₈).

The spelling of 3837213 in words is "three million, eight hundred thirty-seven thousand, two hundred thirteen".