7481489 has 4 divisors (see below), whose sum is σ = 7495860. Its totient is φ = 7467120.

The previous prime is 7481407. The next prime is 7481491. The reversal of 7481489 is 9841847.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9841847 = 47 ⋅209401.

It can be written as a sum of positive squares in 2 ways, for example, as 1982464 + 5499025 = 1408^2 + 2345^2 .

It is a cyclic number.

It is not a de Polignac number, because 7481489 - 2²⁰ = 6432913 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7481389) 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, 6374 + ... + 7455.

It is an arithmetic number, because the mean of its divisors is an integer number (1873965).

Almost surely, 2^7481489 is an apocalyptic number.

It is an amenable number.

7481489 is a deficient number, since it is larger than the sum of its proper divisors (14371).

7481489 is a wasteful number, since it uses less digits than its factorization.

7481489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14370.

The product of its digits is 64512, while the sum is 41.

The square root of 7481489 is about 2735.2310688496. The cubic root of 7481489 is about 195.5822091315.

The spelling of 7481489 in words is "seven million, four hundred eighty-one thousand, four hundred eighty-nine".