71274347 has 4 divisors (see below), whose sum is σ = 72619200. Its totient is φ = 69929496.

The previous prime is 71274331. The next prime is 71274367. The reversal of 71274347 is 74347217.

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 71274347 - 2⁴ = 71274331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71274317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672347 + ... + 672452.

It is an arithmetic number, because the mean of its divisors is an integer number (18154800).

Almost surely, 2^71274347 is an apocalyptic number.

71274347 is a deficient number, since it is larger than the sum of its proper divisors (1344853).

71274347 is a wasteful number, since it uses less digits than its factorization.

71274347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344852.

The product of its digits is 32928, while the sum is 35.

The square root of 71274347 is about 8442.4135766971. The cubic root of 71274347 is about 414.6144326179.

The spelling of 71274347 in words is "seventy-one million, two hundred seventy-four thousand, three hundred forty-seven".