520604743 has 4 divisors (see below), whose sum is σ = 530427528. Its totient is φ = 510781960.

The previous prime is 520604737. The next prime is 520604761. The reversal of 520604743 is 347406025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520604743 - 2¹³ = 520596551 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 (520604443) 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, 4911313 + ... + 4911418.

It is an arithmetic number, because the mean of its divisors is an integer number (132606882).

Almost surely, 2^520604743 is an apocalyptic number.

520604743 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

520604743 is a deficient number, since it is larger than the sum of its proper divisors (9822785).

520604743 is an equidigital number, since it uses as much as digits as its factorization.

520604743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9822784.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 520604743 is about 22816.7645164690. The cubic root of 520604743 is about 804.4567624587.

The spelling of 520604743 in words is "five hundred twenty million, six hundred four thousand, seven hundred forty-three".