506947999 has 2 divisors, whose sum is σ = 506948000. Its totient is φ = 506947998.

The previous prime is 506947979. The next prime is 506948033. The reversal of 506947999 is 999749605.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 506947999 - 2¹¹ = 506945951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506947979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253473999 + 253474000.

It is an arithmetic number, because the mean of its divisors is an integer number (253474000).

Almost surely, 2^506947999 is an apocalyptic number.

506947999 is a deficient number, since it is larger than the sum of its proper divisors (1).

506947999 is an equidigital number, since it uses as much as digits as its factorization.

506947999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5511240, while the sum is 58.

The square root of 506947999 is about 22515.5057460409. The cubic root of 506947999 is about 797.3600473745.

The spelling of 506947999 in words is "five hundred six million, nine hundred forty-seven thousand, nine hundred ninety-nine".