478680379 has 2 divisors, whose sum is σ = 478680380. Its totient is φ = 478680378.

The previous prime is 478680311. The next prime is 478680401. The reversal of 478680379 is 973086874.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478680379 - 2¹⁷ = 478549307 is a prime.

It is not a weakly prime, because it can be changed into another prime (478680479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239340189 + 239340190.

It is an arithmetic number, because the mean of its divisors is an integer number (239340190).

Almost surely, 2^478680379 is an apocalyptic number.

478680379 is a deficient number, since it is larger than the sum of its proper divisors (1).

478680379 is an equidigital number, since it uses as much as digits as its factorization.

478680379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 478680379 is about 21878.7654816262. The cubic root of 478680379 is about 782.2553500302.

The spelling of 478680379 in words is "four hundred seventy-eight million, six hundred eighty thousand, three hundred seventy-nine".