7427247 has 8 divisors (see below), whose sum is σ = 9959040. Its totient is φ = 4923480.

The previous prime is 7427221. The next prime is 7427281.

7427247 is nontrivially palindromic in base 10.

7427247 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7427247 - 2¹¹ = 7425199 is a prime.

It is a d-powerful number, because it can be written as 7⁷ + 4⁵ + 2¹¹ + 7⁷ + 2¹³ + 4⁶ + 7⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7427447) 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 7 ways as a sum of consecutive naturals, for example, 6379 + ... + 7452.

It is an arithmetic number, because the mean of its divisors is an integer number (1244880).

Almost surely, 2^7427247 is an apocalyptic number.

7427247 is a deficient number, since it is larger than the sum of its proper divisors (2531793).

7427247 is a wasteful number, since it uses less digits than its factorization.

7427247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14013.

The product of its digits is 21952, while the sum is 33.

The square root of 7427247 is about 2725.2975984285. The cubic root of 7427247 is about 195.1083946993.

The spelling of 7427247 in words is "seven million, four hundred twenty-seven thousand, two hundred forty-seven".