472645645 has 8 divisors (see below), whose sum is σ = 600538104. Its totient is φ = 355874304.

The previous prime is 472645631. The next prime is 472645661. The reversal of 472645645 is 546546274.

It can be written as a sum of positive squares in 4 ways, for example, as 252746404 + 219899241 = 15898^2 + 14829^2 .

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 472645645 - 2¹¹ = 472643597 is a prime.

It is a super-3 number, since 3×472645645³ (a number of 27 digits) contains 333 as substring.

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, 2780184 + ... + 2780353.

It is an arithmetic number, because the mean of its divisors is an integer number (75067263).

Almost surely, 2^472645645 is an apocalyptic number.

It is an amenable number.

472645645 is a deficient number, since it is larger than the sum of its proper divisors (127892459).

472645645 is a wasteful number, since it uses less digits than its factorization.

472645645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560559.

The product of its digits is 806400, while the sum is 43.

The square root of 472645645 is about 21740.4150144380. The cubic root of 472645645 is about 778.9541346547.

The spelling of 472645645 in words is "four hundred seventy-two million, six hundred forty-five thousand, six hundred forty-five".