478613587 has 2 divisors, whose sum is σ = 478613588. Its totient is φ = 478613586.

The previous prime is 478613581. The next prime is 478613599. The reversal of 478613587 is 785316874.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478613587 - 2¹⁹ = 478089299 is a prime.

It is a super-2 number, since 2×478613587² = 458141931322013138, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478613587.

It is not a weakly prime, because it can be changed into another prime (478613581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239306793 + 239306794.

It is an arithmetic number, because the mean of its divisors is an integer number (239306794).

Almost surely, 2^478613587 is an apocalyptic number.

478613587 is a deficient number, since it is larger than the sum of its proper divisors (1).

478613587 is an equidigital number, since it uses as much as digits as its factorization.

478613587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 49.

The square root of 478613587 is about 21877.2390168412. The cubic root of 478613587 is about 782.2189647009.

The spelling of 478613587 in words is "four hundred seventy-eight million, six hundred thirteen thousand, five hundred eighty-seven".