478241517 has 8 divisors (see below), whose sum is σ = 686705824. Its totient is φ = 294302448.

The previous prime is 478241509. The next prime is 478241527. The reversal of 478241517 is 715142874.

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

It is not a de Polignac number, because 478241517 - 2³ = 478241509 is a prime.

It is a super-2 number, since 2×478241517² = 457429897164922578, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 12262603 = 478241517 / (4 + 7 + 8 + 2 + 4 + 1 + 5 + 1 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478241527) 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, 6131263 + ... + 6131340.

It is an arithmetic number, because the mean of its divisors is an integer number (85838228).

Almost surely, 2^478241517 is an apocalyptic number.

It is an amenable number.

478241517 is a deficient number, since it is larger than the sum of its proper divisors (208464307).

478241517 is a wasteful number, since it uses less digits than its factorization.

478241517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12262619.

The product of its digits is 62720, while the sum is 39.

The square root of 478241517 is about 21868.7337767874. The cubic root of 478241517 is about 782.0162154351.

The spelling of 478241517 in words is "four hundred seventy-eight million, two hundred forty-one thousand, five hundred seventeen".