673565041 has 4 divisors (see below), whose sum is σ = 713186532. Its totient is φ = 633943552.

The previous prime is 673565027. The next prime is 673565059. The reversal of 673565041 is 140565376.

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 319372641 + 354192400 = 17871^2 + 18820^2 .

It is a cyclic number.

It is not a de Polignac number, because 673565041 - 2²¹ = 671467889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673575041) 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, 19810720 + ... + 19810753.

It is an arithmetic number, because the mean of its divisors is an integer number (178296633).

Almost surely, 2^673565041 is an apocalyptic number.

It is an amenable number.

673565041 is a deficient number, since it is larger than the sum of its proper divisors (39621491).

673565041 is a wasteful number, since it uses less digits than its factorization.

673565041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39621490.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 673565041 is about 25953.1316222147. The cubic root of 673565041 is about 876.5832737078.

The spelling of 673565041 in words is "six hundred seventy-three million, five hundred sixty-five thousand, forty-one".