3803421 has 8 divisors (see below), whose sum is σ = 5234944. Its totient is φ = 2453760.

The previous prime is 3803419. The next prime is 3803453. The reversal of 3803421 is 1243083.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3803421 - 2¹ = 3803419 is a prime.

It is a super-2 number, since 2×3803421² = 28932022606482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3803491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20356 + ... + 20541.

It is an arithmetic number, because the mean of its divisors is an integer number (654368).

Almost surely, 2^3803421 is an apocalyptic number.

3803421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3803421 is a deficient number, since it is larger than the sum of its proper divisors (1431523).

3803421 is a wasteful number, since it uses less digits than its factorization.

3803421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40931.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 3803421 is about 1950.2361395482. The cubic root of 3803421 is about 156.0958894362.

It can be divided in two parts, 3803 and 421, that added together give a palindrome (4224).

The spelling of 3803421 in words is "three million, eight hundred three thousand, four hundred twenty-one".