7872243 has 8 divisors (see below), whose sum is σ = 10600656. Its totient is φ = 5196000.

The previous prime is 7872239. The next prime is 7872269. The reversal of 7872243 is 3422787.

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

It is not a de Polignac number, because 7872243 - 2² = 7872239 is a prime.

It is a d-powerful number, because it can be written as 7 + 8⁷ + 7⁸ + 2¹¹ + 2¹³ + 4² + 3³ .

It is not an unprimeable number, because it can be changed into a prime (7872223) 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, 12688 + ... + 13293.

It is an arithmetic number, because the mean of its divisors is an integer number (1325082).

Almost surely, 2^7872243 is an apocalyptic number.

7872243 is a deficient number, since it is larger than the sum of its proper divisors (2728413).

7872243 is a wasteful number, since it uses less digits than its factorization.

7872243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26085.

The product of its digits is 18816, while the sum is 33.

The square root of 7872243 is about 2805.7517709163. The cubic root of 7872243 is about 198.9296402018.

The spelling of 7872243 in words is "seven million, eight hundred seventy-two thousand, two hundred forty-three".