478047347 has 4 divisors (see below), whose sum is σ = 480135120. Its totient is φ = 475959576.

The previous prime is 478047337. The next prime is 478047371. The reversal of 478047347 is 743740874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743740874 = 2 ⋅371870437.

It is a cyclic number.

It is not a de Polignac number, because 478047347 - 2¹⁴ = 478030963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 478047298 and 478047307.

It is not an unprimeable number, because it can be changed into a prime (478047307) 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, 1043543 + ... + 1044000.

It is an arithmetic number, because the mean of its divisors is an integer number (120033780).

Almost surely, 2^478047347 is an apocalyptic number.

478047347 is a deficient number, since it is larger than the sum of its proper divisors (2087773).

478047347 is a wasteful number, since it uses less digits than its factorization.

478047347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087772.

The product of its (nonzero) digits is 526848, while the sum is 44.

The square root of 478047347 is about 21864.2938829499. The cubic root of 478047347 is about 781.9103660976.

The spelling of 478047347 in words is "four hundred seventy-eight million, forty-seven thousand, three hundred forty-seven".