71384555 has 12 divisors (see below), whose sum is σ = 94157616. Its totient is φ = 51915600.

The previous prime is 71384519. The next prime is 71384591. The reversal of 71384555 is 55548317.

It is an interprime number because it is at equal distance from previous prime (71384519) and next prime (71384591).

It is not a de Polignac number, because 71384555 - 2¹⁸ = 71122411 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58391 + ... + 59600.

It is an arithmetic number, because the mean of its divisors is an integer number (7846468).

Almost surely, 2^71384555 is an apocalyptic number.

71384555 is a deficient number, since it is larger than the sum of its proper divisors (22773061).

71384555 is a wasteful number, since it uses less digits than its factorization.

71384555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118018 (or 118007 counting only the distinct ones).

The product of its digits is 84000, while the sum is 38.

The square root of 71384555 is about 8448.9380989566. The cubic root of 71384555 is about 414.8280218365.

The spelling of 71384555 in words is "seventy-one million, three hundred eighty-four thousand, five hundred fifty-five".