7487449 has 2 divisors, whose sum is σ = 7487450. Its totient is φ = 7487448.

The previous prime is 7487437. The next prime is 7487453. The reversal of 7487449 is 9447847.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6734025 + 753424 = 2595^2 + 868^2 .

It is a cyclic number.

It is not a de Polignac number, because 7487449 - 2⁷ = 7487321 is a prime.

It is not a weakly prime, because it can be changed into another prime (7487419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3743724 + 3743725.

It is an arithmetic number, because the mean of its divisors is an integer number (3743725).

Almost surely, 2^7487449 is an apocalyptic number.

It is an amenable number.

7487449 is a deficient number, since it is larger than the sum of its proper divisors (1).

7487449 is an equidigital number, since it uses as much as digits as its factorization.

7487449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 43.

The square root of 7487449 is about 2736.3203394340. The cubic root of 7487449 is about 195.6341310848.

It can be divided in two parts, 7 and 487449, that multiplied together give a palindrome (3412143).

The spelling of 7487449 in words is "seven million, four hundred eighty-seven thousand, four hundred forty-nine".