7972243 has 4 divisors (see below), whose sum is σ = 8157688. Its totient is φ = 7786800.

The previous prime is 7972231. The next prime is 7972253. The reversal of 7972243 is 3422797.

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 7972243 - 2¹³ = 7964051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7972199 and 7972208.

It is not an unprimeable number, because it can be changed into a prime (7972253) 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, 92658 + ... + 92743.

It is an arithmetic number, because the mean of its divisors is an integer number (2039422).

Almost surely, 2^7972243 is an apocalyptic number.

7972243 is a deficient number, since it is larger than the sum of its proper divisors (185445).

7972243 is a wasteful number, since it uses less digits than its factorization.

7972243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185444.

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

The square root of 7972243 is about 2823.5160704342. The cubic root of 7972243 is about 199.7684236321.

The spelling of 7972243 in words is "seven million, nine hundred seventy-two thousand, two hundred forty-three".