34423421 has 4 divisors (see below), whose sum is σ = 36235200. Its totient is φ = 32611644.

The previous prime is 34423397. The next prime is 34423429. The reversal of 34423421 is 12432443.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12432443 = 23 ⋅540541.

It is a cyclic number.

It is not a de Polignac number, because 34423421 - 2¹⁰ = 34422397 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 (34423429) 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, 905861 + ... + 905898.

It is an arithmetic number, because the mean of its divisors is an integer number (9058800).

Almost surely, 2^34423421 is an apocalyptic number.

It is an amenable number.

34423421 is a deficient number, since it is larger than the sum of its proper divisors (1811779).

34423421 is a wasteful number, since it uses less digits than its factorization.

34423421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811778.

The product of its digits is 2304, while the sum is 23.

The square root of 34423421 is about 5867.1476033930. The cubic root of 34423421 is about 325.3004590269.

Adding to 34423421 its reverse (12432443), we get a palindrome (46855864).

The spelling of 34423421 in words is "thirty-four million, four hundred twenty-three thousand, four hundred twenty-one".