520000197 has 8 divisors (see below), whose sum is σ = 693493056. Its totient is φ = 346587072.

The previous prime is 520000193. The next prime is 520000223. The reversal of 520000197 is 791000025.

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

It is not a de Polignac number, because 520000197 - 2² = 520000193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520000193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2548 + ... + 32349.

It is an arithmetic number, because the mean of its divisors is an integer number (86686632).

Almost surely, 2^520000197 is an apocalyptic number.

It is an amenable number.

520000197 is a deficient number, since it is larger than the sum of its proper divisors (173492859).

520000197 is a wasteful number, since it uses less digits than its factorization.

520000197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39867.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 520000197 is about 22803.5128214931. The cubic root of 520000197 is about 804.1452532669.

The spelling of 520000197 in words is "five hundred twenty million, one hundred ninety-seven", and thus it is an aban number.