34997147 has 4 divisors (see below), whose sum is σ = 35130480. Its totient is φ = 34863816.

The previous prime is 34997143. The next prime is 34997159. The reversal of 34997147 is 74179943.

It is a happy number.

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 34997147 - 2² = 34997143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34997098 and 34997107.

It is not an unprimeable number, because it can be changed into a prime (34997143) 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 3 ways as a sum of consecutive naturals, for example, 66272 + ... + 66797.

It is an arithmetic number, because the mean of its divisors is an integer number (8782620).

Almost surely, 2^34997147 is an apocalyptic number.

34997147 is a deficient number, since it is larger than the sum of its proper divisors (133333).

34997147 is a wasteful number, since it uses less digits than its factorization.

34997147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133332.

The product of its digits is 190512, while the sum is 44.

The square root of 34997147 is about 5915.8386556768. The cubic root of 34997147 is about 327.0977428229.

The spelling of 34997147 in words is "thirty-four million, nine hundred ninety-seven thousand, one hundred forty-seven".