71683512 has 32 divisors (see below), whose sum is σ = 179623680. Its totient is φ = 23839200.

The previous prime is 71683487. The next prime is 71683519. The reversal of 71683512 is 21538617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71683519) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 7887 + ... + 14337.

It is an arithmetic number, because the mean of its divisors is an integer number (5613240).

Almost surely, 2^71683512 is an apocalyptic number.

It is an amenable number.

71683512 is an abundant number, since it is smaller than the sum of its proper divisors (107940168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71683512 is a wasteful number, since it uses less digits than its factorization.

71683512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6923 (or 6919 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 71683512 is about 8466.6116008708. The cubic root of 71683512 is about 415.4063122781.

The spelling of 71683512 in words is "seventy-one million, six hundred eighty-three thousand, five hundred twelve".