506279447 has 2 divisors, whose sum is σ = 506279448. Its totient is φ = 506279446.

The previous prime is 506279393. The next prime is 506279509. The reversal of 506279447 is 744972605.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 506279447 - 2²⁴ = 489502231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 506279398 and 506279407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506279047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253139723 + 253139724.

It is an arithmetic number, because the mean of its divisors is an integer number (253139724).

Almost surely, 2^506279447 is an apocalyptic number.

506279447 is a deficient number, since it is larger than the sum of its proper divisors (1).

506279447 is an equidigital number, since it uses as much as digits as its factorization.

506279447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 506279447 is about 22500.6543682623. The cubic root of 506279447 is about 797.0093794796.

The spelling of 506279447 in words is "five hundred six million, two hundred seventy-nine thousand, four hundred forty-seven".