71875731 has 8 divisors (see below), whose sum is σ = 95883264. Its totient is φ = 47892680.

The previous prime is 71875729. The next prime is 71875753. The reversal of 71875731 is 13757817.

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 71875731 - 2¹ = 71875729 is a prime.

It is a super-2 number, since 2×71875731² = 10332241413568722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71875731.

It is not an unprimeable number, because it can be changed into a prime (71875931) 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, 2446 + ... + 12236.

It is an arithmetic number, because the mean of its divisors is an integer number (11985408).

Almost surely, 2^71875731 is an apocalyptic number.

71875731 is a deficient number, since it is larger than the sum of its proper divisors (24007533).

71875731 is a wasteful number, since it uses less digits than its factorization.

71875731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241.

The product of its digits is 41160, while the sum is 39.

The square root of 71875731 is about 8477.9555908249. The cubic root of 71875731 is about 415.7772842459. Note that the first 3 decimals are identical.

The spelling of 71875731 in words is "seventy-one million, eight hundred seventy-five thousand, seven hundred thirty-one".