506361397 has 2 divisors, whose sum is σ = 506361398. Its totient is φ = 506361396.

The previous prime is 506361389. The next prime is 506361403. The reversal of 506361397 is 793163605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 392277636 + 114083761 = 19806^2 + 10681^2 .

It is a cyclic number.

It is not a de Polignac number, because 506361397 - 2³ = 506361389 is a prime.

It is equal to p_26672845 and since 506361397 and 26672845 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506361367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253180698 + 253180699.

It is an arithmetic number, because the mean of its divisors is an integer number (253180699).

Almost surely, 2^506361397 is an apocalyptic number.

It is an amenable number.

506361397 is a deficient number, since it is larger than the sum of its proper divisors (1).

506361397 is an equidigital number, since it uses as much as digits as its factorization.

506361397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 506361397 is about 22502.4753527251. The cubic root of 506361397 is about 797.0523803660.

The spelling of 506361397 in words is "five hundred six million, three hundred sixty-one thousand, three hundred ninety-seven".