478659841 has 4 divisors (see below), whose sum is σ = 522174384. Its totient is φ = 435145300.

The previous prime is 478659833. The next prime is 478659847. The reversal of 478659841 is 148956874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 478659841 - 2³ = 478659833 is a prime.

It is a super-2 number, since 2×478659841² = 458230486772290562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478659847) 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, 21757255 + ... + 21757276.

It is an arithmetic number, because the mean of its divisors is an integer number (130543596).

Almost surely, 2^478659841 is an apocalyptic number.

It is an amenable number.

478659841 is a deficient number, since it is larger than the sum of its proper divisors (43514543).

478659841 is a wasteful number, since it uses less digits than its factorization.

478659841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43514542.

The product of its digits is 1935360, while the sum is 52.

The square root of 478659841 is about 21878.2961173854. The cubic root of 478659841 is about 782.2441621960.

The spelling of 478659841 in words is "four hundred seventy-eight million, six hundred fifty-nine thousand, eight hundred forty-one".