478551289 has 8 divisors (see below), whose sum is σ = 485671680. Its totient is φ = 471441600.

The previous prime is 478551263. The next prime is 478551313. The reversal of 478551289 is 982155874.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 478551289 - 2¹¹ = 478549241 is a prime.

It is a super-2 number, since 2×478551289² = 458022672407123042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478551239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151872 + ... + 154990.

It is an arithmetic number, because the mean of its divisors is an integer number (60708960).

Almost surely, 2^478551289 is an apocalyptic number.

It is an amenable number.

478551289 is a deficient number, since it is larger than the sum of its proper divisors (7120391).

478551289 is a wasteful number, since it uses less digits than its factorization.

478551289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5351.

The product of its digits is 806400, while the sum is 49.

The square root of 478551289 is about 21875.8151619545. The cubic root of 478551289 is about 782.1850244529.

The spelling of 478551289 in words is "four hundred seventy-eight million, five hundred fifty-one thousand, two hundred eighty-nine".