34747947 has 20 divisors (see below), whose sum is σ = 55902000. Its totient is φ = 21382704.

The previous prime is 34747943. The next prime is 34747957. The reversal of 34747947 is 74974743.

It is not a de Polignac number, because 34747947 - 2² = 34747943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34747943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15447 + ... + 17552.

It is an arithmetic number, because the mean of its divisors is an integer number (2795100).

Almost surely, 2^34747947 is an apocalyptic number.

34747947 is a deficient number, since it is larger than the sum of its proper divisors (21154053).

34747947 is a wasteful number, since it uses less digits than its factorization.

34747947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33024 (or 33015 counting only the distinct ones).

The product of its digits is 592704, while the sum is 45.

The square root of 34747947 is about 5894.7389255165. The cubic root of 34747947 is about 326.3195174889.

The spelling of 34747947 in words is "thirty-four million, seven hundred forty-seven thousand, nine hundred forty-seven".