506798197 has 2 divisors, whose sum is σ = 506798198. Its totient is φ = 506798196.

The previous prime is 506798183. The next prime is 506798219. The reversal of 506798197 is 791897605.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 498584241 + 8213956 = 22329^2 + 2866^2 .

It is a cyclic number.

It is not a de Polignac number, because 506798197 - 2⁷ = 506798069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506798167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253399098 + 253399099.

It is an arithmetic number, because the mean of its divisors is an integer number (253399099).

Almost surely, 2^506798197 is an apocalyptic number.

It is an amenable number.

506798197 is a deficient number, since it is larger than the sum of its proper divisors (1).

506798197 is an equidigital number, since it uses as much as digits as its factorization.

506798197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 52.

The square root of 506798197 is about 22512.1788594529. The cubic root of 506798197 is about 797.2815002669.

The spelling of 506798197 in words is "five hundred six million, seven hundred ninety-eight thousand, one hundred ninety-seven".