478737971 has 4 divisors (see below), whose sum is σ = 483673512. Its totient is φ = 473802432.

The previous prime is 478737967. The next prime is 478737979. The reversal of 478737971 is 179737874.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179737874 = 2 ⋅89868937.

It is a cyclic number.

It is not a de Polignac number, because 478737971 - 2² = 478737967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478737979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2467625 + ... + 2467818.

It is an arithmetic number, because the mean of its divisors is an integer number (120918378).

Almost surely, 2^478737971 is an apocalyptic number.

478737971 is a deficient number, since it is larger than the sum of its proper divisors (4935541).

478737971 is an equidigital number, since it uses as much as digits as its factorization.

478737971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4935540.

The product of its digits is 2074464, while the sum is 53.

The square root of 478737971 is about 21880.0816040526. The cubic root of 478737971 is about 782.2867208888.

The spelling of 478737971 in words is "four hundred seventy-eight million, seven hundred thirty-seven thousand, nine hundred seventy-one".