3436421 has 4 divisors (see below), whose sum is σ = 3480000. Its totient is φ = 3392844.

The previous prime is 3436417. The next prime is 3436423. The reversal of 3436421 is 1246343.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3436421 - 2² = 3436417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3436423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21671 + ... + 21828.

It is an arithmetic number, because the mean of its divisors is an integer number (870000).

Almost surely, 2^3436421 is an apocalyptic number.

It is an amenable number.

3436421 is a deficient number, since it is larger than the sum of its proper divisors (43579).

3436421 is an equidigital number, since it uses as much as digits as its factorization.

3436421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43578.

The product of its digits is 1728, while the sum is 23.

The square root of 3436421 is about 1853.7586142753. The cubic root of 3436421 is about 150.9044759340.

The spelling of 3436421 in words is "three million, four hundred thirty-six thousand, four hundred twenty-one".