34645643 has 4 divisors (see below), whose sum is σ = 36683640. Its totient is φ = 32607648.

The previous prime is 34645603. The next prime is 34645649. The reversal of 34645643 is 34654643.

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 34645643 - 2²² = 30451339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34645649) 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, 1018973 + ... + 1019006.

It is an arithmetic number, because the mean of its divisors is an integer number (9170910).

Almost surely, 2^34645643 is an apocalyptic number.

34645643 is a deficient number, since it is larger than the sum of its proper divisors (2037997).

34645643 is a wasteful number, since it uses less digits than its factorization.

34645643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037996.

The product of its digits is 103680, while the sum is 35.

The square root of 34645643 is about 5886.0549606676. The cubic root of 34645643 is about 325.9989555464.

The spelling of 34645643 in words is "thirty-four million, six hundred forty-five thousand, six hundred forty-three".