34321643 has 4 divisors (see below), whose sum is σ = 34520208. Its totient is φ = 34123080.

The previous prime is 34321597. The next prime is 34321663. The reversal of 34321643 is 34612343.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34612343 = 1063 ⋅32561.

It is a cyclic number.

It is not a de Polignac number, because 34321643 - 2²⁴ = 17544427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34321663) 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, 99023 + ... + 99368.

It is an arithmetic number, because the mean of its divisors is an integer number (8630052).

Almost surely, 2^34321643 is an apocalyptic number.

34321643 is a deficient number, since it is larger than the sum of its proper divisors (198565).

34321643 is a wasteful number, since it uses less digits than its factorization.

34321643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198564.

The product of its digits is 5184, while the sum is 26.

The square root of 34321643 is about 5858.4676324104. The cubic root of 34321643 is about 324.9795426966.

Adding to 34321643 its reverse (34612343), we get a palindrome (68933986).

The spelling of 34321643 in words is "thirty-four million, three hundred twenty-one thousand, six hundred forty-three".