34157947 has 8 divisors (see below), whose sum is σ = 36234000. Its totient is φ = 32089344.

The previous prime is 34157891. The next prime is 34157951. The reversal of 34157947 is 74975143.

34157947 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 34157947 - 2⁷ = 34157819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34157957) by changing a digit.

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, 9679 + ... + 12727.

It is an arithmetic number, because the mean of its divisors is an integer number (4529250).

Almost surely, 2^34157947 is an apocalyptic number.

34157947 is a deficient number, since it is larger than the sum of its proper divisors (2076053).

34157947 is a wasteful number, since it uses less digits than its factorization.

34157947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725.

The product of its digits is 105840, while the sum is 40.

The square root of 34157947 is about 5844.4800453077. The cubic root of 34157947 is about 324.4620592028.

The spelling of 34157947 in words is "thirty-four million, one hundred fifty-seven thousand, nine hundred forty-seven".