478784927 has 2 divisors, whose sum is σ = 478784928. Its totient is φ = 478784926.

The previous prime is 478784903. The next prime is 478784959. The reversal of 478784927 is 729487874.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478784927 - 2⁸ = 478784671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478784827) 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, 239392463 + 239392464.

It is an arithmetic number, because the mean of its divisors is an integer number (239392464).

Almost surely, 2^478784927 is an apocalyptic number.

478784927 is a deficient number, since it is larger than the sum of its proper divisors (1).

478784927 is an equidigital number, since it uses as much as digits as its factorization.

478784927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6322176, while the sum is 56.

The square root of 478784927 is about 21881.1546084753. The cubic root of 478784927 is about 782.3122963647.

The spelling of 478784927 in words is "four hundred seventy-eight million, seven hundred eighty-four thousand, nine hundred twenty-seven".