71868874 has 32 divisors (see below), whose sum is σ = 138047616. Its totient is φ = 27241920.

The previous prime is 71868857. The next prime is 71868889. The reversal of 71868874 is 47886817.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 609 + ... + 12004.

It is an arithmetic number, because the mean of its divisors is an integer number (4313988).

Almost surely, 2^71868874 is an apocalyptic number.

71868874 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

71868874 is a deficient number, since it is larger than the sum of its proper divisors (66178742).

71868874 is a wasteful number, since it uses less digits than its factorization.

71868874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12670.

The product of its digits is 602112, while the sum is 49.

The square root of 71868874 is about 8477.5511794386. The cubic root of 71868874 is about 415.7640620012.

The spelling of 71868874 in words is "seventy-one million, eight hundred sixty-eight thousand, eight hundred seventy-four".