521077329 has 12 divisors (see below), whose sum is σ = 753915136. Its totient is φ = 346808952.

The previous prime is 521077313. The next prime is 521077339. The reversal of 521077329 is 923770125.

It is not a de Polignac number, because 521077329 - 2⁴ = 521077313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 521077293 and 521077302.

It is not an unprimeable number, because it can be changed into a prime (521077339) 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 11 ways as a sum of consecutive naturals, for example, 42229 + ... + 53154.

Almost surely, 2^521077329 is an apocalyptic number.

It is an amenable number.

521077329 is a deficient number, since it is larger than the sum of its proper divisors (232837807).

521077329 is a wasteful number, since it uses less digits than its factorization.

521077329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95996 (or 95993 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 521077329 is about 22827.1182806766. The cubic root of 521077329 is about 804.7001076774.

The spelling of 521077329 in words is "five hundred twenty-one million, seventy-seven thousand, three hundred twenty-nine".