478527889 has 4 divisors (see below), whose sum is σ = 546889024. Its totient is φ = 410166756.

The previous prime is 478527877. The next prime is 478527911. The reversal of 478527889 is 988725874.

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 478527889 - 2¹¹ = 478525841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478527689) 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, 34180557 + ... + 34180570.

It is an arithmetic number, because the mean of its divisors is an integer number (136722256).

Almost surely, 2^478527889 is an apocalyptic number.

It is an amenable number.

478527889 is a deficient number, since it is larger than the sum of its proper divisors (68361135).

478527889 is an equidigital number, since it uses as much as digits as its factorization.

478527889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68361134.

The product of its digits is 9031680, while the sum is 58.

The square root of 478527889 is about 21875.2803182039. The cubic root of 478527889 is about 782.1722752601.

The spelling of 478527889 in words is "four hundred seventy-eight million, five hundred twenty-seven thousand, eight hundred eighty-nine".