71338473 has 6 divisors (see below), whose sum is σ = 103044474. Its totient is φ = 47558976.

The previous prime is 71338469. The next prime is 71338523. The reversal of 71338473 is 37483317.

It can be written as a sum of positive squares in only one way, i.e., 42146064 + 29192409 = 6492^2 + 5403^2 .

It is not a de Polignac number, because 71338473 - 2² = 71338469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71338373) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3963240 + ... + 3963257.

It is an arithmetic number, because the mean of its divisors is an integer number (17174079).

Almost surely, 2^71338473 is an apocalyptic number.

It is an amenable number.

71338473 is a deficient number, since it is larger than the sum of its proper divisors (31706001).

71338473 is a wasteful number, since it uses less digits than its factorization.

71338473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7926503 (or 7926500 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 71338473 is about 8446.2105704274. The cubic root of 71338473 is about 414.7387391253.

The spelling of 71338473 in words is "seventy-one million, three hundred thirty-eight thousand, four hundred seventy-three".