71480663 has 4 divisors (see below), whose sum is σ = 73143048. Its totient is φ = 69818280.

The previous prime is 71480657. The next prime is 71480693. The reversal of 71480663 is 36608417.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71480663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71480653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831128 + ... + 831213.

It is an arithmetic number, because the mean of its divisors is an integer number (18285762).

Almost surely, 2^71480663 is an apocalyptic number.

71480663 is a deficient number, since it is larger than the sum of its proper divisors (1662385).

71480663 is a wasteful number, since it uses less digits than its factorization.

71480663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662384.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 71480663 is about 8454.6237645445. The cubic root of 71480663 is about 415.0141050995.

The spelling of 71480663 in words is "seventy-one million, four hundred eighty thousand, six hundred sixty-three".