478242777 has 16 divisors (see below), whose sum is σ = 645096960. Its totient is φ = 315120000.

The previous prime is 478242773. The next prime is 478242811. The reversal of 478242777 is 777242874.

It is not a de Polignac number, because 478242777 - 2² = 478242773 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478242773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244152 + ... + 246102.

It is an arithmetic number, because the mean of its divisors is an integer number (40318560).

Almost surely, 2^478242777 is an apocalyptic number.

It is an amenable number.

478242777 is a deficient number, since it is larger than the sum of its proper divisors (166854183).

478242777 is a wasteful number, since it uses less digits than its factorization.

478242777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864.

The product of its digits is 1229312, while the sum is 48.

The square root of 478242777 is about 21868.7625850207. The cubic root of 478242777 is about 782.0169022147.

The spelling of 478242777 in words is "four hundred seventy-eight million, two hundred forty-two thousand, seven hundred seventy-seven".