478638699 has 16 divisors (see below), whose sum is σ = 795659520. Its totient is φ = 248643360.

The previous prime is 478638691. The next prime is 478638703. The reversal of 478638699 is 996836874.

It is not a de Polignac number, because 478638699 - 2³ = 478638691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478638691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1035784 + ... + 1036245.

It is an arithmetic number, because the mean of its divisors is an integer number (49728720).

Almost surely, 2^478638699 is an apocalyptic number.

478638699 is a deficient number, since it is larger than the sum of its proper divisors (317020821).

478638699 is a wasteful number, since it uses less digits than its factorization.

478638699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072050.

The product of its digits is 15676416, while the sum is 60.

The square root of 478638699 is about 21877.8129391400. The cubic root of 478638699 is about 782.2326450056.

The spelling of 478638699 in words is "four hundred seventy-eight million, six hundred thirty-eight thousand, six hundred ninety-nine".