8742773 has 4 divisors (see below), whose sum is σ = 9415308. Its totient is φ = 8070240.

The previous prime is 8742739. The next prime is 8742779. The reversal of 8742773 is 3772478.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5943844 + 2798929 = 2438^2 + 1673^2 .

It is a cyclic number.

It is not a de Polignac number, because 8742773 - 2¹⁰ = 8741749 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 (8742779) 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, 336248 + ... + 336273.

It is an arithmetic number, because the mean of its divisors is an integer number (2353827).

Almost surely, 2^8742773 is an apocalyptic number.

It is an amenable number.

8742773 is a deficient number, since it is larger than the sum of its proper divisors (672535).

8742773 is a wasteful number, since it uses less digits than its factorization.

8742773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672534.

The product of its digits is 65856, while the sum is 38.

The square root of 8742773 is about 2956.8180532458. The cubic root of 8742773 is about 206.0075169281.

The spelling of 8742773 in words is "eight million, seven hundred forty-two thousand, seven hundred seventy-three".