478379653 has 4 divisors (see below), whose sum is σ = 483311500. Its totient is φ = 473447808.

The previous prime is 478379651. The next prime is 478379669. The reversal of 478379653 is 356973874.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 336245569 + 142134084 = 18337^2 + 11922^2 .

It is a cyclic number.

It is not a de Polignac number, because 478379653 - 2¹ = 478379651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 478379653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478379651) 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, 2465778 + ... + 2465971.

It is an arithmetic number, because the mean of its divisors is an integer number (120827875).

Almost surely, 2^478379653 is an apocalyptic number.

It is an amenable number.

478379653 is a deficient number, since it is larger than the sum of its proper divisors (4931847).

478379653 is an equidigital number, since it uses as much as digits as its factorization.

478379653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4931846.

The product of its digits is 3810240, while the sum is 52.

The square root of 478379653 is about 21871.8918477575. The cubic root of 478379653 is about 782.0915011008.

The spelling of 478379653 in words is "four hundred seventy-eight million, three hundred seventy-nine thousand, six hundred fifty-three".