478837641 has 4 divisors (see below), whose sum is σ = 638450192. Its totient is φ = 319225092.

The previous prime is 478837633. The next prime is 478837643. The reversal of 478837641 is 146738874.

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 not a de Polignac number, because 478837641 - 2³ = 478837633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478837643) 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, 79806271 + ... + 79806276.

It is an arithmetic number, because the mean of its divisors is an integer number (159612548).

Almost surely, 2^478837641 is an apocalyptic number.

It is an amenable number.

478837641 is a deficient number, since it is larger than the sum of its proper divisors (159612551).

478837641 is a wasteful number, since it uses less digits than its factorization.

478837641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159612550.

The product of its digits is 903168, while the sum is 48.

The square root of 478837641 is about 21882.3591278454. The cubic root of 478837641 is about 782.3410060523.

The spelling of 478837641 in words is "four hundred seventy-eight million, eight hundred thirty-seven thousand, six hundred forty-one".