71967542 has 8 divisors (see below), whose sum is σ = 108999696. Its totient is φ = 35634312.

The previous prime is 71967541. The next prime is 71967547. The reversal of 71967542 is 24576917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 71967542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71967541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174473 + ... + 174884.

It is an arithmetic number, because the mean of its divisors is an integer number (13624962).

Almost surely, 2^71967542 is an apocalyptic number.

71967542 is a deficient number, since it is larger than the sum of its proper divisors (37032154).

71967542 is a wasteful number, since it uses less digits than its factorization.

71967542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349462.

The product of its digits is 105840, while the sum is 41.

The square root of 71967542 is about 8483.3685526446. The cubic root of 71967542 is about 415.9542409912.

The spelling of 71967542 in words is "seventy-one million, nine hundred sixty-seven thousand, five hundred forty-two".