71383601 has 2 divisors, whose sum is σ = 71383602. Its totient is φ = 71383600.

The previous prime is 71383597. The next prime is 71383657. The reversal of 71383601 is 10638317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52548001 + 18835600 = 7249^2 + 4340^2 .

It is an emirp because it is prime and its reverse (10638317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71383601 - 2² = 71383597 is a prime.

It is not a weakly prime, because it can be changed into another prime (71383681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35691800 + 35691801.

It is an arithmetic number, because the mean of its divisors is an integer number (35691801).

Almost surely, 2^71383601 is an apocalyptic number.

It is an amenable number.

71383601 is a deficient number, since it is larger than the sum of its proper divisors (1).

71383601 is an equidigital number, since it uses as much as digits as its factorization.

71383601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 71383601 is about 8448.8816419690. The cubic root of 71383601 is about 414.8261738751.

The spelling of 71383601 in words is "seventy-one million, three hundred eighty-three thousand, six hundred one".