71423 has 8 divisors (see below), whose sum is σ = 80256. Its totient is φ = 63000.

The previous prime is 71419. The next prime is 71429. The reversal of 71423 is 32417.

It is a happy number.

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 71423 - 2² = 71419 is a prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71429) 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, 398 + ... + 548.

It is an arithmetic number, because the mean of its divisors is an integer number (10032).

2⁷¹⁴²³ is an apocalyptic number.

71423 is a deficient number, since it is larger than the sum of its proper divisors (8833).

71423 is a wasteful number, since it uses less digits than its factorization.

71423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205.

The product of its digits is 168, while the sum is 17.

The square root of 71423 is about 267.2508185207. The cubic root of 71423 is about 41.4902478658.

It can be divided in two parts, 714 and 23, that added together give a palindrome (737).

The spelling of 71423 in words is "seventy-one thousand, four hundred twenty-three", and thus it is an iban number.