7972423 has 4 divisors (see below), whose sum is σ = 7998208. Its totient is φ = 7946640.

The previous prime is 7972417. The next prime is 7972429. The reversal of 7972423 is 3242797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3242797 = 311 ⋅10427.

It is an interprime number because it is at equal distance from previous prime (7972417) and next prime (7972429).

It is a cyclic number.

It is not a de Polignac number, because 7972423 - 2⁹ = 7971911 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7972429) 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, 12423 + ... + 13048.

It is an arithmetic number, because the mean of its divisors is an integer number (1999552).

Almost surely, 2^7972423 is an apocalyptic number.

7972423 is a deficient number, since it is larger than the sum of its proper divisors (25785).

7972423 is a wasteful number, since it uses less digits than its factorization.

7972423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25784.

The product of its digits is 21168, while the sum is 34.

The square root of 7972423 is about 2823.5479454049. The cubic root of 7972423 is about 199.7699271005.

The spelling of 7972423 in words is "seven million, nine hundred seventy-two thousand, four hundred twenty-three".