478159717 has 32 divisors (see below), whose sum is σ = 581566464. Its totient is φ = 384523200.

The previous prime is 478159691. The next prime is 478159727. The reversal of 478159717 is 717951874.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478159717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478159727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1764292 + ... + 1764562.

It is an arithmetic number, because the mean of its divisors is an integer number (18173952).

Almost surely, 2^478159717 is an apocalyptic number.

478159717 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

478159717 is a deficient number, since it is larger than the sum of its proper divisors (103406747).

478159717 is a wasteful number, since it uses less digits than its factorization.

478159717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529.

The product of its digits is 493920, while the sum is 49.

The square root of 478159717 is about 21866.8634467772. The cubic root of 478159717 is about 781.9716266853.

The spelling of 478159717 in words is "four hundred seventy-eight million, one hundred fifty-nine thousand, seven hundred seventeen".