7422247 has 4 divisors (see below), whose sum is σ = 8482576. Its totient is φ = 6361920.

The previous prime is 7422229. The next prime is 7422253.

7422247 is nontrivially palindromic in base 10.

7422247 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7422247 - 2¹¹ = 7420199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7422227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530154 + ... + 530167.

It is an arithmetic number, because the mean of its divisors is an integer number (2120644).

Almost surely, 2^7422247 is an apocalyptic number.

7422247 is a deficient number, since it is larger than the sum of its proper divisors (1060329).

7422247 is a wasteful number, since it uses less digits than its factorization.

7422247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060328.

The product of its digits is 6272, while the sum is 28.

The square root of 7422247 is about 2724.3801129798. The cubic root of 7422247 is about 195.0646027458.

The spelling of 7422247 in words is "seven million, four hundred twenty-two thousand, two hundred forty-seven".