675005605 has 4 divisors (see below), whose sum is σ = 810006732. Its totient is φ = 540004480.

The previous prime is 675005603. The next prime is 675005623. The reversal of 675005605 is 506500576.

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 181899169 + 493106436 = 13487^2 + 22206^2 .

It is not a de Polignac number, because 675005605 - 2¹ = 675005603 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 (675005603) 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, 67500556 + ... + 67500565.

It is an arithmetic number, because the mean of its divisors is an integer number (202501683).

Almost surely, 2^675005605 is an apocalyptic number.

It is an amenable number.

675005605 is a deficient number, since it is larger than the sum of its proper divisors (135001127).

675005605 is a wasteful number, since it uses less digits than its factorization.

675005605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135001126.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 675005605 is about 25980.8699815845. The cubic root of 675005605 is about 877.2077494748.

The spelling of 675005605 in words is "six hundred seventy-five million, five thousand, six hundred five".