34321421 has 8 divisors (see below), whose sum is σ = 35648640. Its totient is φ = 33019168.

The previous prime is 34321403. The next prime is 34321457. The reversal of 34321421 is 12412343.

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

It is a cyclic number.

It is not a de Polignac number, because 34321421 - 2²² = 30127117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 34321393 and 34321402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34321121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3416 + ... + 8961.

It is an arithmetic number, because the mean of its divisors is an integer number (4456080).

Almost surely, 2^34321421 is an apocalyptic number.

It is an amenable number.

34321421 is a deficient number, since it is larger than the sum of its proper divisors (1327219).

34321421 is a wasteful number, since it uses less digits than its factorization.

34321421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12483.

The product of its digits is 576, while the sum is 20.

The square root of 34321421 is about 5858.4486854457. The cubic root of 34321421 is about 324.9788420151.

Adding to 34321421 its reverse (12412343), we get a palindrome (46733764).

The spelling of 34321421 in words is "thirty-four million, three hundred twenty-one thousand, four hundred twenty-one".