71848381 has 8 divisors (see below), whose sum is σ = 78881184. Its totient is φ = 64899120.

The previous prime is 71848363. The next prime is 71848397. The reversal of 71848381 is 18384817.

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

It is not a de Polignac number, because 71848381 - 2⁵ = 71848349 is a prime.

It is a super-2 number, since 2×71848381² = 10324379704642322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71848351) 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, 19075 + ... + 22528.

It is an arithmetic number, because the mean of its divisors is an integer number (9860148).

Almost surely, 2^71848381 is an apocalyptic number.

It is an amenable number.

71848381 is a deficient number, since it is larger than the sum of its proper divisors (7032803).

71848381 is a wasteful number, since it uses less digits than its factorization.

71848381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41771.

The product of its digits is 43008, while the sum is 40.

The square root of 71848381 is about 8476.3424305534. The cubic root of 71848381 is about 415.7245406600.

The spelling of 71848381 in words is "seventy-one million, eight hundred forty-eight thousand, three hundred eighty-one".