675657029 has 4 divisors (see below), whose sum is σ = 677662284. Its totient is φ = 673651776.

The previous prime is 675657023. The next prime is 675657041. The reversal of 675657029 is 920756576.

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 235622500 + 440034529 = 15350^2 + 20977^2 .

It is a cyclic number.

It is not a de Polignac number, because 675657029 - 2⁴ = 675657013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675657023) 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, 1002122 + ... + 1002795.

It is an arithmetic number, because the mean of its divisors is an integer number (169415571).

Almost surely, 2^675657029 is an apocalyptic number.

It is an amenable number.

675657029 is a deficient number, since it is larger than the sum of its proper divisors (2005255).

675657029 is a wasteful number, since it uses less digits than its factorization.

675657029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005254.

The product of its (nonzero) digits is 793800, while the sum is 47.

The square root of 675657029 is about 25993.4035670591. The cubic root of 675657029 is about 877.4898461229.

The spelling of 675657029 in words is "six hundred seventy-five million, six hundred fifty-seven thousand, twenty-nine".