478307279 has 2 divisors, whose sum is σ = 478307280. Its totient is φ = 478307278.

The previous prime is 478307267. The next prime is 478307281. The reversal of 478307279 is 972703874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478307279 - 2¹² = 478303183 is a prime.

Together with 478307281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478307209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239153639 + 239153640.

It is an arithmetic number, because the mean of its divisors is an integer number (239153640).

Almost surely, 2^478307279 is an apocalyptic number.

478307279 is a deficient number, since it is larger than the sum of its proper divisors (1).

478307279 is an equidigital number, since it uses as much as digits as its factorization.

478307279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 592704, while the sum is 47.

The square root of 478307279 is about 21870.2372872358. The cubic root of 478307279 is about 782.0520582687.

The spelling of 478307279 in words is "four hundred seventy-eight million, three hundred seven thousand, two hundred seventy-nine".