7484557 has 2 divisors, whose sum is σ = 7484558. Its totient is φ = 7484556.

The previous prime is 7484551. The next prime is 7484567. The reversal of 7484557 is 7554847.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7474756 + 9801 = 2734^2 + 99^2 .

It is an emirp because it is prime and its reverse (7554847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7484557 - 2⁷ = 7484429 is a prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7484551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3742278 + 3742279.

It is an arithmetic number, because the mean of its divisors is an integer number (3742279).

Almost surely, 2^7484557 is an apocalyptic number.

It is an amenable number.

7484557 is a deficient number, since it is larger than the sum of its proper divisors (1).

7484557 is an equidigital number, since it uses as much as digits as its factorization.

7484557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156800, while the sum is 40.

The square root of 7484557 is about 2735.7918414967. The cubic root of 7484557 is about 195.6089401835.

The spelling of 7484557 in words is "seven million, four hundred eighty-four thousand, five hundred fifty-seven".