71323816 has 16 divisors (see below), whose sum is σ = 136578240. Its totient is φ = 34902960.

The previous prime is 71323757. The next prime is 71323841. The reversal of 71323816 is 61832317.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94470 + ... + 95221.

It is an arithmetic number, because the mean of its divisors is an integer number (8536140).

Almost surely, 2^71323816 is an apocalyptic number.

It is an amenable number.

71323816 is a deficient number, since it is larger than the sum of its proper divisors (65254424).

71323816 is a wasteful number, since it uses less digits than its factorization.

71323816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189744 (or 189740 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 71323816 is about 8445.3428586411. The cubic root of 71323816 is about 414.7103334988.

The spelling of 71323816 in words is "seventy-one million, three hundred twenty-three thousand, eight hundred sixteen".