478458867 has 8 divisors (see below), whose sum is σ = 658524160. Its totient is φ = 308683080.

The previous prime is 478458821. The next prime is 478458923. The reversal of 478458867 is 768854874.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 478458867 - 2¹⁹ = 477934579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478458367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2572267 + ... + 2572452.

It is an arithmetic number, because the mean of its divisors is an integer number (82315520).

Almost surely, 2^478458867 is an apocalyptic number.

478458867 is a deficient number, since it is larger than the sum of its proper divisors (180065293).

478458867 is a wasteful number, since it uses less digits than its factorization.

478458867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5144753.

The product of its digits is 12042240, while the sum is 57.

The square root of 478458867 is about 21873.7026358136. The cubic root of 478458867 is about 782.1346670789.

The spelling of 478458867 in words is "four hundred seventy-eight million, four hundred fifty-eight thousand, eight hundred sixty-seven".