71908523 has 8 divisors (see below), whose sum is σ = 72829536. Its totient is φ = 70992000.

The previous prime is 71908489. The next prime is 71908541. The reversal of 71908523 is 32580917.

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 71908523 - 2²⁰ = 70859947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71908553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40433 + ... + 42173.

It is an arithmetic number, because the mean of its divisors is an integer number (9103692).

Almost surely, 2^71908523 is an apocalyptic number.

71908523 is a deficient number, since it is larger than the sum of its proper divisors (921013).

71908523 is a wasteful number, since it uses less digits than its factorization.

71908523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 71908523 is about 8479.8893271080. The cubic root of 71908523 is about 415.8405049167.

The spelling of 71908523 in words is "seventy-one million, nine hundred eight thousand, five hundred twenty-three".