478222767 has 24 divisors (see below), whose sum is σ = 797893200. Its totient is φ = 272782080.

The previous prime is 478222757. The next prime is 478222783. The reversal of 478222767 is 767222874.

It is not a de Polignac number, because 478222767 - 2⁷ = 478222639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478222747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140392 + ... + 143757.

It is an arithmetic number, because the mean of its divisors is an integer number (33245550).

Almost surely, 2^478222767 is an apocalyptic number.

478222767 is a deficient number, since it is larger than the sum of its proper divisors (319670433).

478222767 is a wasteful number, since it uses less digits than its factorization.

478222767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284183 (or 284180 counting only the distinct ones).

The product of its digits is 526848, while the sum is 45.

The square root of 478222767 is about 21868.3050783548. The cubic root of 478222767 is about 782.0059953579.

The spelling of 478222767 in words is "four hundred seventy-eight million, two hundred twenty-two thousand, seven hundred sixty-seven".