71854 has 8 divisors (see below), whose sum is σ = 110808. Its totient is φ = 34920.

The previous prime is 71849. The next prime is 71861. The reversal of 71854 is 45817.

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

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

71854 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412 + ... + 559.

It is an arithmetic number, because the mean of its divisors is an integer number (13851).

2⁷¹⁸⁵⁴ is an apocalyptic number.

71854 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

71854 is a deficient number, since it is larger than the sum of its proper divisors (38954).

71854 is a wasteful number, since it uses less digits than its factorization.

71854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010.

The product of its digits is 1120, while the sum is 25.

The square root of 71854 is about 268.0559643060. The cubic root of 71854 is about 41.5735377811.

The spelling of 71854 in words is "seventy-one thousand, eight hundred fifty-four".