506974879 has 2 divisors, whose sum is σ = 506974880. Its totient is φ = 506974878.

The previous prime is 506974841. The next prime is 506974903. The reversal of 506974879 is 978479605.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 506974879 - 2⁷ = 506974751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506974379) 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, 253487439 + 253487440.

It is an arithmetic number, because the mean of its divisors is an integer number (253487440).

Almost surely, 2^506974879 is an apocalyptic number.

506974879 is a deficient number, since it is larger than the sum of its proper divisors (1).

506974879 is an equidigital number, since it uses as much as digits as its factorization.

506974879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The square root of 506974879 is about 22516.1026600964. The cubic root of 506974879 is about 797.3741399832.

The spelling of 506974879 in words is "five hundred six million, nine hundred seventy-four thousand, eight hundred seventy-nine".