71289676 has 24 divisors (see below), whose sum is σ = 129141936. Its totient is φ = 34407360.

The previous prime is 71289671. The next prime is 71289703. The reversal of 71289676 is 67698217.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71289671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17550 + ... + 21226.

It is an arithmetic number, because the mean of its divisors is an integer number (5380914).

Almost surely, 2^71289676 is an apocalyptic number.

It is an amenable number.

71289676 is a deficient number, since it is larger than the sum of its proper divisors (57852260).

71289676 is a wasteful number, since it uses less digits than its factorization.

71289676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3849 (or 3847 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 71289676 is about 8443.3213843842. The cubic root of 71289676 is about 414.6441542468.

It can be divided in two parts, 71289 and 676, that multiplied together give a square (48191364 = 6942²).

The spelling of 71289676 in words is "seventy-one million, two hundred eighty-nine thousand, six hundred seventy-six".