478624565 has 8 divisors (see below), whose sum is σ = 574713528. Its totient is φ = 382656960.

The previous prime is 478624541. The next prime is 478624577. The reversal of 478624565 is 565426874.

It can be written as a sum of positive squares in 4 ways, for example, as 269156836 + 209467729 = 16406^2 + 14473^2 .

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

It is not a de Polignac number, because 478624565 - 2⁶ = 478624501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21422 + ... + 37631.

It is an arithmetic number, because the mean of its divisors is an integer number (71839191).

Almost surely, 2^478624565 is an apocalyptic number.

It is an amenable number.

478624565 is a deficient number, since it is larger than the sum of its proper divisors (96088963).

478624565 is a wasteful number, since it uses less digits than its factorization.

478624565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60679.

The product of its digits is 1612800, while the sum is 47.

The square root of 478624565 is about 21877.4899154359. The cubic root of 478624565 is about 782.2249452625.

The spelling of 478624565 in words is "four hundred seventy-eight million, six hundred twenty-four thousand, five hundred sixty-five".