478736109 has 16 divisors (see below), whose sum is σ = 710680000. Its totient is φ = 318508848.

The previous prime is 478736087. The next prime is 478736123. The reversal of 478736109 is 901637874.

478736109 is a `hidden beast` number, since 478 + 73 + 6 + 109 = 666.

It is not a de Polignac number, because 478736109 - 2¹² = 478732013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478736149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4294 + ... + 31239.

It is an arithmetic number, because the mean of its divisors is an integer number (44417500).

Almost surely, 2^478736109 is an apocalyptic number.

It is an amenable number.

478736109 is a deficient number, since it is larger than the sum of its proper divisors (231943891).

478736109 is a wasteful number, since it uses less digits than its factorization.

478736109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36041 (or 36035 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 478736109 is about 21880.0390538957. The cubic root of 478736109 is about 782.2857066807.

The spelling of 478736109 in words is "four hundred seventy-eight million, seven hundred thirty-six thousand, one hundred nine".