7424247 has 4 divisors (see below), whose sum is σ = 9899000. Its totient is φ = 4949496.

The previous prime is 7424243. The next prime is 7424273.

7424247 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 7424247 - 2² = 7424243 is a prime.

It is a Duffinian number.

7424247 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7424243) 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, 1237372 + ... + 1237377.

It is an arithmetic number, because the mean of its divisors is an integer number (2474750).

Almost surely, 2^7424247 is an apocalyptic number.

7424247 is a deficient number, since it is larger than the sum of its proper divisors (2474753).

7424247 is a wasteful number, since it uses less digits than its factorization.

7424247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474752.

The product of its digits is 12544, while the sum is 30.

The square root of 7424247 is about 2724.7471442319. The cubic root of 7424247 is about 195.0821218865.

The spelling of 7424247 in words is "seven million, four hundred twenty-four thousand, two hundred forty-seven".