71739941 has 8 divisors (see below), whose sum is σ = 88295424. Its totient is φ = 56761200.

The previous prime is 71739937. The next prime is 71739959. The reversal of 71739941 is 14993717.

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

It is a cyclic number.

It is not a de Polignac number, because 71739941 - 2² = 71739937 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71739911) 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 7 ways as a sum of consecutive naturals, for example, 394085 + ... + 394266.

It is an arithmetic number, because the mean of its divisors is an integer number (11036928).

Almost surely, 2^71739941 is an apocalyptic number.

It is an amenable number.

71739941 is a deficient number, since it is larger than the sum of its proper divisors (16555483).

71739941 is a wasteful number, since it uses less digits than its factorization.

71739941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788371.

The product of its digits is 47628, while the sum is 41.

The square root of 71739941 is about 8469.9433882406. The cubic root of 71739941 is about 415.5152858014.

The spelling of 71739941 in words is "seventy-one million, seven hundred thirty-nine thousand, nine hundred forty-one".