520826747 has 8 divisors (see below), whose sum is σ = 615756000. Its totient is φ = 431028864.

The previous prime is 520826737. The next prime is 520826767. The reversal of 520826747 is 747628025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 520826747 - 2¹⁶ = 520761211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520826737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1282622 + ... + 1283027.

It is an arithmetic number, because the mean of its divisors is an integer number (76969500).

Almost surely, 2^520826747 is an apocalyptic number.

520826747 is a deficient number, since it is larger than the sum of its proper divisors (94929253).

520826747 is a wasteful number, since it uses less digits than its factorization.

520826747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565685.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 520826747 is about 22821.6289295922. The cubic root of 520826747 is about 804.5710956718.

The spelling of 520826747 in words is "five hundred twenty million, eight hundred twenty-six thousand, seven hundred forty-seven".