71323823 has 16 divisors (see below), whose sum is σ = 77584320. Its totient is φ = 65318400.

The previous prime is 71323757. The next prime is 71323841. The reversal of 71323823 is 32832317.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71323823 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 (71323843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112718 + ... + 113348.

It is an arithmetic number, because the mean of its divisors is an integer number (4849020).

Almost surely, 2^71323823 is an apocalyptic number.

71323823 is a deficient number, since it is larger than the sum of its proper divisors (6260497).

71323823 is a wasteful number, since it uses less digits than its factorization.

71323823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818.

The product of its digits is 6048, while the sum is 29.

The square root of 71323823 is about 8445.3432730707. The cubic root of 71323823 is about 414.7103470659.

The spelling of 71323823 in words is "seventy-one million, three hundred twenty-three thousand, eight hundred twenty-three".