7283561 has 4 divisors (see below), whose sum is σ = 7480452. Its totient is φ = 7086672.

The previous prime is 7283539. The next prime is 7283569. The reversal of 7283561 is 1653827.

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: 1653827 = 7 ⋅236261.

It can be written as a sum of positive squares in 2 ways, for example, as 5736025 + 1547536 = 2395^2 + 1244^2 .

It is a cyclic number.

It is not a de Polignac number, because 7283561 - 2¹⁰ = 7282537 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 (7283569) 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 3 ways as a sum of consecutive naturals, for example, 98390 + ... + 98463.

It is an arithmetic number, because the mean of its divisors is an integer number (1870113).

Almost surely, 2^7283561 is an apocalyptic number.

It is an amenable number.

7283561 is a deficient number, since it is larger than the sum of its proper divisors (196891).

7283561 is a wasteful number, since it uses less digits than its factorization.

7283561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196890.

The product of its digits is 10080, while the sum is 32.

The square root of 7283561 is about 2698.8073291734. The cubic root of 7283561 is about 193.8420172004.

The spelling of 7283561 in words is "seven million, two hundred eighty-three thousand, five hundred sixty-one".