71867384 has 8 divisors (see below), whose sum is σ = 134751360. Its totient is φ = 35933688.

The previous prime is 71867377. The next prime is 71867413. The reversal of 71867384 is 48376817.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4491704 + ... + 4491719.

It is an arithmetic number, because the mean of its divisors is an integer number (16843920).

Almost surely, 2^71867384 is an apocalyptic number.

It is an amenable number.

71867384 is a deficient number, since it is larger than the sum of its proper divisors (62883976).

71867384 is a wasteful number, since it uses less digits than its factorization.

71867384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8983429 (or 8983425 counting only the distinct ones).

The product of its digits is 225792, while the sum is 44.

The square root of 71867384 is about 8477.4632998321. The cubic root of 71867384 is about 415.7611887465.

The spelling of 71867384 in words is "seventy-one million, eight hundred sixty-seven thousand, three hundred eighty-four".