472806139 has 8 divisors (see below), whose sum is σ = 513848720. Its totient is φ = 432431136.

The previous prime is 472806071. The next prime is 472806151. The reversal of 472806139 is 931608274.

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

It is a cyclic number.

It is not a de Polignac number, because 472806139 - 2¹³ = 472797947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472806179) 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, 165417 + ... + 168250.

It is an arithmetic number, because the mean of its divisors is an integer number (64231090).

Almost surely, 2^472806139 is an apocalyptic number.

472806139 is a deficient number, since it is larger than the sum of its proper divisors (41042581).

472806139 is a wasteful number, since it uses less digits than its factorization.

472806139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333789.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 472806139 is about 21744.1058450330. The cubic root of 472806139 is about 779.0422932419.

The spelling of 472806139 in words is "four hundred seventy-two million, eight hundred six thousand, one hundred thirty-nine".