3836421 has 12 divisors (see below), whose sum is σ = 5559840. Its totient is φ = 2549160.

The previous prime is 3836401. The next prime is 3836431. The reversal of 3836421 is 1246383.

It is a happy number.

It is not a de Polignac number, because 3836421 - 2⁵ = 3836389 is a prime.

It is a d-powerful number, because it can be written as 3³ + 8³ + 3¹⁰ + 6⁸ + 4³ + 2²¹ + 1 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3836401) 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, 3466 + ... + 4436.

It is an arithmetic number, because the mean of its divisors is an integer number (463320).

Almost surely, 2^3836421 is an apocalyptic number.

It is an amenable number.

3836421 is a deficient number, since it is larger than the sum of its proper divisors (1723419).

3836421 is a wasteful number, since it uses less digits than its factorization.

3836421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416 (or 1413 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 3836421 is about 1958.6783809498. The cubic root of 3836421 is about 156.5460401379.

The spelling of 3836421 in words is "three million, eight hundred thirty-six thousand, four hundred twenty-one".