34320643 has 4 divisors (see below), whose sum is σ = 39223600. Its totient is φ = 29417688.

The previous prime is 34320641. The next prime is 34320673. The reversal of 34320643 is 34602343.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34320643 - 2¹ = 34320641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34320641) 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, 2451468 + ... + 2451481.

It is an arithmetic number, because the mean of its divisors is an integer number (9805900).

Almost surely, 2^34320643 is an apocalyptic number.

34320643 is a deficient number, since it is larger than the sum of its proper divisors (4902957).

34320643 is an equidigital number, since it uses as much as digits as its factorization.

34320643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4902956.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 34320643 is about 5858.3822852388. The cubic root of 34320643 is about 324.9763864500.

Adding to 34320643 its reverse (34602343), we get a palindrome (68922986).

The spelling of 34320643 in words is "thirty-four million, three hundred twenty thousand, six hundred forty-three".