7971423 has 8 divisors (see below), whose sum is σ = 10647936. Its totient is φ = 5304600.

The previous prime is 7971413. The next prime is 7971443. The reversal of 7971423 is 3241797.

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

It is not a de Polignac number, because 7971423 - 2¹³ = 7963231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7971413) 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, 213 + ... + 3998.

It is an arithmetic number, because the mean of its divisors is an integer number (1330992).

Almost surely, 2^7971423 is an apocalyptic number.

7971423 is a deficient number, since it is larger than the sum of its proper divisors (2676513).

7971423 is a wasteful number, since it uses less digits than its factorization.

7971423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845.

The product of its digits is 10584, while the sum is 33.

The square root of 7971423 is about 2823.3708576806. The cubic root of 7971423 is about 199.7615742120.

It can be divided in two parts, 7971 and 423, that multiplied together give a palindrome (3371733).

The spelling of 7971423 in words is "seven million, nine hundred seventy-one thousand, four hundred twenty-three".