71686076 has 48 divisors (see below), whose sum is σ = 165618432. Its totient is φ = 26284800.

The previous prime is 71686067. The next prime is 71686103. The reversal of 71686076 is 67068617.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1610 + ... + 12081.

It is an arithmetic number, because the mean of its divisors is an integer number (3450384).

Almost surely, 2^71686076 is an apocalyptic number.

It is an amenable number.

71686076 is an abundant number, since it is smaller than the sum of its proper divisors (93932356).

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

71686076 is a wasteful number, since it uses less digits than its factorization.

71686076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13730 (or 13728 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 71686076 is about 8466.7630178245. The cubic root of 71686076 is about 415.4112650167.

The spelling of 71686076 in words is "seventy-one million, six hundred eighty-six thousand, seventy-six".