478495893 has 8 divisors (see below), whose sum is σ = 638647488. Its totient is φ = 318670784.

The previous prime is 478495891. The next prime is 478495903. The reversal of 478495893 is 398594874.

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

It is a cyclic number.

It is not a de Polignac number, because 478495893 - 2¹ = 478495891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478495891) 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, 78180 + ... + 84077.

It is an arithmetic number, because the mean of its divisors is an integer number (79830936).

Almost surely, 2^478495893 is an apocalyptic number.

It is an amenable number.

478495893 is a deficient number, since it is larger than the sum of its proper divisors (160151595).

478495893 is a wasteful number, since it uses less digits than its factorization.

478495893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163243.

The product of its digits is 8709120, while the sum is 57.

The square root of 478495893 is about 21874.5489782075. The cubic root of 478495893 is about 782.1548419732.

The spelling of 478495893 in words is "four hundred seventy-eight million, four hundred ninety-five thousand, eight hundred ninety-three".