478726879 has 2 divisors, whose sum is σ = 478726880. Its totient is φ = 478726878.

The previous prime is 478726877. The next prime is 478726889. The reversal of 478726879 is 978627874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478726879 - 2¹ = 478726877 is a prime.

Together with 478726877, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478726877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239363439 + 239363440.

It is an arithmetic number, because the mean of its divisors is an integer number (239363440).

Almost surely, 2^478726879 is an apocalyptic number.

478726879 is a deficient number, since it is larger than the sum of its proper divisors (1).

478726879 is an equidigital number, since it uses as much as digits as its factorization.

478726879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9483264, while the sum is 58.

The square root of 478726879 is about 21879.8281300380. The cubic root of 478726879 is about 782.2806791765.

The spelling of 478726879 in words is "four hundred seventy-eight million, seven hundred twenty-six thousand, eight hundred seventy-nine".