71963782 has 12 divisors (see below), whose sum is σ = 118651428. Its totient is φ = 32710700.

The previous prime is 71963747. The next prime is 71963783. The reversal of 71963782 is 28736917.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71963783) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 148444 + ... + 148927.

It is an arithmetic number, because the mean of its divisors is an integer number (9887619).

Almost surely, 2^71963782 is an apocalyptic number.

71963782 is a deficient number, since it is larger than the sum of its proper divisors (46687646).

71963782 is a wasteful number, since it uses less digits than its factorization.

71963782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297395 (or 297384 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 71963782 is about 8483.1469396681. The cubic root of 71963782 is about 415.9469969145.

The spelling of 71963782 in words is "seventy-one million, nine hundred sixty-three thousand, seven hundred eighty-two".