71875810 has 8 divisors (see below), whose sum is σ = 129376476. Its totient is φ = 28750320.

The previous prime is 71875789. The next prime is 71875819. The reversal of 71875810 is 1857817.

It can be written as a sum of positive squares in 2 ways, for example, as 58384881 + 13490929 = 7641^2 + 3673^2 .

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

It is a super-2 number, since 2×71875810² = 10332264126312200, 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 71875810.

It is not an unprimeable number, because it can be changed into a prime (71875819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3593781 + ... + 3593800.

Almost surely, 2^71875810 is an apocalyptic number.

71875810 is a deficient number, since it is larger than the sum of its proper divisors (57500666).

71875810 is a wasteful number, since it uses less digits than its factorization.

71875810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7187588.

The product of its (nonzero) digits is 15680, while the sum is 37.

The square root of 71875810 is about 8477.9602499658. The cubic root of 71875810 is about 415.7774365754. Note that the first 3 decimals are identical.

The spelling of 71875810 in words is "seventy-one million, eight hundred seventy-five thousand, eight hundred ten".