675640773 has 12 divisors (see below), whose sum is σ = 976157260. Its totient is φ = 450320256.

The previous prime is 675640739. The next prime is 675640783. The reversal of 675640773 is 377046576.

It can be written as a sum of positive squares in 2 ways, for example, as 230979204 + 444661569 = 15198^2 + 21087^2 .

It is a de Polignac number, because none of the positive numbers 2^k-675640773 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 (675640733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55965 + ... + 66957.

Almost surely, 2^675640773 is an apocalyptic number.

It is an amenable number.

675640773 is a deficient number, since it is larger than the sum of its proper divisors (300516487).

675640773 is a wasteful number, since it uses less digits than its factorization.

675640773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17828 (or 17825 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 45.

The square root of 675640773 is about 25993.0908704602. The cubic root of 675640773 is about 877.4828087313.

The spelling of 675640773 in words is "six hundred seventy-five million, six hundred forty thousand, seven hundred seventy-three".