34539643 has 4 divisors (see below), whose sum is σ = 34567848. Its totient is φ = 34511440.

The previous prime is 34539569. The next prime is 34539647. The reversal of 34539643 is 34693543.

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 34539643 - 2²¹ = 32442491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34539647) 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, 12178 + ... + 14743.

It is an arithmetic number, because the mean of its divisors is an integer number (8641962).

Almost surely, 2^34539643 is an apocalyptic number.

34539643 is a deficient number, since it is larger than the sum of its proper divisors (28205).

34539643 is a wasteful number, since it uses less digits than its factorization.

34539643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28204.

The product of its digits is 116640, while the sum is 37.

The square root of 34539643 is about 5877.0437296314. The cubic root of 34539643 is about 325.6661461066. Note that the first 3 decimals are identical.

The spelling of 34539643 in words is "thirty-four million, five hundred thirty-nine thousand, six hundred forty-three".