71338427 has 2 divisors, whose sum is σ = 71338428. Its totient is φ = 71338426.

The previous prime is 71338411. The next prime is 71338439. The reversal of 71338427 is 72483317.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71338427 - 2⁴ = 71338411 is a prime.

It is not a weakly prime, because it can be changed into another prime (71332427) 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 as a sum of consecutive naturals, namely, 35669213 + 35669214.

It is an arithmetic number, because the mean of its divisors is an integer number (35669214).

Almost surely, 2^71338427 is an apocalyptic number.

71338427 is a deficient number, since it is larger than the sum of its proper divisors (1).

71338427 is an equidigital number, since it uses as much as digits as its factorization.

71338427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 35.

The square root of 71338427 is about 8446.2078473123. The cubic root of 71338427 is about 414.7386499823.

The spelling of 71338427 in words is "seventy-one million, three hundred thirty-eight thousand, four hundred twenty-seven".