34643945 has 8 divisors (see below), whose sum is σ = 47511744. Its totient is φ = 23755824.

The previous prime is 34643899. The next prime is 34643969. The reversal of 34643945 is 54934643.

It is a happy number.

34643945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 34643945 - 2¹² = 34639849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34643899 and 34643908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494879 + ... + 494948.

It is an arithmetic number, because the mean of its divisors is an integer number (5938968).

Almost surely, 2^34643945 is an apocalyptic number.

34643945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34643945 is a deficient number, since it is larger than the sum of its proper divisors (12867799).

34643945 is an equidigital number, since it uses as much as digits as its factorization.

34643945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989839.

The product of its digits is 155520, while the sum is 38.

The square root of 34643945 is about 5885.9107196763. The cubic root of 34643945 is about 325.9936296696.

The spelling of 34643945 in words is "thirty-four million, six hundred forty-three thousand, nine hundred forty-five".