478389699 has 8 divisors (see below), whose sum is σ = 708725520. Its totient is φ = 318926448.

The previous prime is 478389689. The next prime is 478389701. The reversal of 478389699 is 996983874.

It is not a de Polignac number, because 478389699 - 2²⁴ = 461612483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478389689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8859042 + ... + 8859095.

It is an arithmetic number, because the mean of its divisors is an integer number (88590690).

Almost surely, 2^478389699 is an apocalyptic number.

478389699 is a deficient number, since it is larger than the sum of its proper divisors (230335821).

478389699 is a wasteful number, since it uses less digits than its factorization.

478389699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17718146 (or 17718140 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The square root of 478389699 is about 21872.1215020400. The cubic root of 478389699 is about 782.0969757178.

The spelling of 478389699 in words is "four hundred seventy-eight million, three hundred eighty-nine thousand, six hundred ninety-nine".