71310663 has 12 divisors (see below), whose sum is σ = 103168728. Its totient is φ = 47464560.

The previous prime is 71310661. The next prime is 71310671. The reversal of 71310663 is 36601317.

It is not a de Polignac number, because 71310663 - 2¹ = 71310661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71310661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45 + ... + 11942.

It is an arithmetic number, because the mean of its divisors is an integer number (8597394).

Almost surely, 2^71310663 is an apocalyptic number.

71310663 is a deficient number, since it is larger than the sum of its proper divisors (31858065).

71310663 is a wasteful number, since it uses less digits than its factorization.

71310663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12654 (or 12651 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 71310663 is about 8444.5641095322. The cubic root of 71310663 is about 414.6848393480.

The spelling of 71310663 in words is "seventy-one million, three hundred ten thousand, six hundred sixty-three".