478794971 has 4 divisors (see below), whose sum is σ = 486910200. Its totient is φ = 470679744.

The previous prime is 478794949. The next prime is 478794977. The reversal of 478794971 is 179497874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478794971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478794977) 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, 4057526 + ... + 4057643.

It is an arithmetic number, because the mean of its divisors is an integer number (121727550).

Almost surely, 2^478794971 is an apocalyptic number.

478794971 is a deficient number, since it is larger than the sum of its proper divisors (8115229).

478794971 is an equidigital number, since it uses as much as digits as its factorization.

478794971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8115228.

The product of its digits is 3556224, while the sum is 56.

The square root of 478794971 is about 21881.3841198403. The cubic root of 478794971 is about 782.3177668027.

The spelling of 478794971 in words is "four hundred seventy-eight million, seven hundred ninety-four thousand, nine hundred seventy-one".