71683546 has 12 divisors (see below), whose sum is σ = 118189386. Its totient is φ = 32583320.

The previous prime is 71683529. The next prime is 71683589. The reversal of 71683546 is 64538617.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 56776225 + 14907321 = 7535^2 + 3861^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71683499 and 71683508.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 147865 + ... + 148348.

Almost surely, 2^71683546 is an apocalyptic number.

71683546 is a deficient number, since it is larger than the sum of its proper divisors (46505840).

71683546 is a wasteful number, since it uses less digits than its factorization.

71683546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296237 (or 296226 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 71683546 is about 8466.6136087576. The cubic root of 71683546 is about 415.4063779548.

Subtracting from 71683546 its reverse (64538617), we obtain a square (7144929 = 2673²).

The spelling of 71683546 in words is "seventy-one million, six hundred eighty-three thousand, five hundred forty-six".