71347473 has 24 divisors (see below), whose sum is σ = 108108000. Its totient is φ = 47016288.

The previous prime is 71347427. The next prime is 71347481. The reversal of 71347473 is 37474317.

It is not a de Polignac number, because 71347473 - 2⁸ = 71347217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71347483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19978 + ... + 23276.

It is an arithmetic number, because the mean of its divisors is an integer number (4504500).

Almost surely, 2^71347473 is an apocalyptic number.

It is an amenable number.

71347473 is a deficient number, since it is larger than the sum of its proper divisors (36760527).

71347473 is an equidigital number, since it uses as much as digits as its factorization.

71347473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403 (or 3391 counting only the distinct ones).

The product of its digits is 49392, while the sum is 36.

The square root of 71347473 is about 8446.7433369317. The cubic root of 71347473 is about 414.7561794187.

The spelling of 71347473 in words is "seventy-one million, three hundred forty-seven thousand, four hundred seventy-three".