478326587 has 4 divisors (see below), whose sum is σ = 484879080. Its totient is φ = 471774096.

The previous prime is 478326571. The next prime is 478326599. The reversal of 478326587 is 785623874.

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

It is a cyclic number.

It is not a de Polignac number, because 478326587 - 2⁴ = 478326571 is a prime.

It is a super-4 number, since 4×478326587⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478326557) 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, 3276137 + ... + 3276282.

It is an arithmetic number, because the mean of its divisors is an integer number (121219770).

Almost surely, 2^478326587 is an apocalyptic number.

478326587 is a deficient number, since it is larger than the sum of its proper divisors (6552493).

478326587 is an equidigital number, since it uses as much as digits as its factorization.

478326587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6552492.

The product of its digits is 2257920, while the sum is 50.

The square root of 478326587 is about 21870.6787046036. The cubic root of 478326587 is about 782.0625812516.

The spelling of 478326587 in words is "four hundred seventy-eight million, three hundred twenty-six thousand, five hundred eighty-seven".