506284391 has 2 divisors, whose sum is σ = 506284392. Its totient is φ = 506284390.

The previous prime is 506284379. The next prime is 506284403. The reversal of 506284391 is 193482605.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (506284379) and next prime (506284403).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506284391 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506284321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253142195 + 253142196.

It is an arithmetic number, because the mean of its divisors is an integer number (253142196).

Almost surely, 2^506284391 is an apocalyptic number.

506284391 is a deficient number, since it is larger than the sum of its proper divisors (1).

506284391 is an equidigital number, since it uses as much as digits as its factorization.

506284391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 506284391 is about 22500.7642314656. The cubic root of 506284391 is about 797.0119738318.

The spelling of 506284391 in words is "five hundred six million, two hundred eighty-four thousand, three hundred ninety-one".