478383257 has 8 divisors (see below), whose sum is σ = 522672480. Its totient is φ = 434227360.

The previous prime is 478383223. The next prime is 478383259. The reversal of 478383257 is 752383874.

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 478383257 - 2⁶ = 478383193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478383259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25748 + ... + 40245.

It is an arithmetic number, because the mean of its divisors is an integer number (65334060).

Almost surely, 2^478383257 is an apocalyptic number.

It is an amenable number.

478383257 is a deficient number, since it is larger than the sum of its proper divisors (44289223).

478383257 is a wasteful number, since it uses less digits than its factorization.

478383257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66663.

The product of its digits is 1128960, while the sum is 47.

The square root of 478383257 is about 21871.9742364515. The cubic root of 478383257 is about 782.0934651271.

The spelling of 478383257 in words is "four hundred seventy-eight million, three hundred eighty-three thousand, two hundred fifty-seven".