3743421 has 8 divisors (see below), whose sum is σ = 5445024. Its totient is φ = 2268720.

The previous prime is 3743419. The next prime is 3743447. The reversal of 3743421 is 1243473.

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

It is not a de Polignac number, because 3743421 - 2¹ = 3743419 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

3743421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3743391 and 3743400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3743461) 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, 56686 + ... + 56751.

It is an arithmetic number, because the mean of its divisors is an integer number (680628).

Almost surely, 2^3743421 is an apocalyptic number.

It is an amenable number.

3743421 is a deficient number, since it is larger than the sum of its proper divisors (1701603).

3743421 is a wasteful number, since it uses less digits than its factorization.

3743421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113451.

The product of its digits is 2016, while the sum is 24.

The square root of 3743421 is about 1934.7922369081. The cubic root of 3743421 is about 155.2707166351.

Adding to 3743421 its reverse (1243473), we get a palindrome (4986894).

The spelling of 3743421 in words is "three million, seven hundred forty-three thousand, four hundred twenty-one".