971423 has 4 divisors (see below), whose sum is σ = 979200. Its totient is φ = 963648.

The previous prime is 971419. The next prime is 971429. The reversal of 971423 is 324179.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 971423 - 2² = 971419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 971392 and 971401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3698 + ... + 3951.

It is an arithmetic number, because the mean of its divisors is an integer number (244800).

2⁹⁷¹⁴²³ is an apocalyptic number.

971423 is a deficient number, since it is larger than the sum of its proper divisors (7777).

971423 is a wasteful number, since it uses less digits than its factorization.

971423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776.

The product of its digits is 1512, while the sum is 26.

The square root of 971423 is about 985.6079342213. The cubic root of 971423 is about 99.0382126403.

The spelling of 971423 in words is "nine hundred seventy-one thousand, four hundred twenty-three".