71323863 has 32 divisors (see below), whose sum is σ = 105670656. Its totient is φ = 42517248.

The previous prime is 71323843. The next prime is 71323871. The reversal of 71323863 is 36832317.

It is not a de Polignac number, because 71323863 - 2¹⁴ = 71307479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71323843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305995 + ... + 306227.

It is an arithmetic number, because the mean of its divisors is an integer number (3302208).

Almost surely, 2^71323863 is an apocalyptic number.

71323863 is a deficient number, since it is larger than the sum of its proper divisors (34346793).

71323863 is a wasteful number, since it uses less digits than its factorization.

71323863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463.

The product of its digits is 18144, while the sum is 33.

The square root of 71323863 is about 8445.3456412393. The cubic root of 71323863 is about 414.7104245922.

The spelling of 71323863 in words is "seventy-one million, three hundred twenty-three thousand, eight hundred sixty-three".